List of Fringe characters

This is a list of characters in the science fiction television series Fringe.

Primary characters

Olivia Dunham

Main article: Olivia Dunham

Olivia Dunham (played by Anna Torv, and, as a girl, by Ada Berker) is a young FBI agent assigned to a multi-agency task force of the U.S. Department of Homeland Security called the "Fringe division".

The Other Universe version of Olivia Dunham, variously nicknamed Altivia, Alt-Olivia, Fauxlivia, Otherlivia, and Bolivia is an agent of the alternate and more powerful Fringe division. As of the end of season 2, Bolivia is in the prime universe, having taken Olivia's place without the knowledge of the Bishops, and maintains a close relationship with Peter for unknown reasons.

Peter Bishop

Main article: Peter Bishop

Peter Bishop (played by Joshua Jackson and, as a boy, by Quinn Lord and Nico Ghisi) is the son of mad scientist Walter Bishop, and a member of the Fringe division. In the show's second season it is revealed that Peter is actually from a parallel universe from where he had been kidnapped by Walter after this universe's version of Peter died. He is a genius with an I.Q. of 190, a college drop-out with gambling debts, and a jack-of-all-trades.

Walter Bishop

Main article: Walter Bishop (Fringe)

Walter Bishop (played by John Noble) is a former government researcher into fringe science with a recorded I.Q. of 196. He was institutionalized after a lab accident which resulted in manslaughter charges. Having been locked up for 17 years in a mental institute prior to becoming assigned to the Fringe division, Walter often expresses wonder at modern technology, and seems to be disconnected from the world, sometimes leaving his son to decode his rantings for others. He often says things which seem so obvious that no one else wants to say (or thinks necessary) and tends to burst into song while working, as he believes it helps him think. He is also known to eat or drink while working on a body, no matter how disgusting everyone else thinks it is. He seems to derive joy from both these quirks. He is the archetypal mad scientist.

The Other Universe version of Walter Bishop, nicknamed Walternate/"Mr. Secretary" is the United States Secretary of Defense, and directly oversees the alternate and more powerful Fringe division. He also serves as the immediate superior to the shapeshifters, with their leader - Thomas Jerome Newton - being extremely loyal and protective of him (possibly being friends). Walternate, making arrangements through Newton and other shapeshifters, successfully travelled to the prime universe, and was later brought to see Peter for the first time since he was taken by his counterpart. Walternate convinces Peter to return home to the Other Universe, though he later goes back, though not before Walternate appears to have Olivia replaced by her own counterpart, as part of an unknown plan regarding Peter.

=Phillip Broyles

Phillip Broyles (played by Lance Reddick) is a Homeland Security Special Agent and head of the Fringe division, which was established to investigate a series of terrorist/unexplained phenomena. While Broyles comes off as professional and by-the-book, he is surprisingly flexible when it comes to dealing with the unusual circumstances of Pattern-related cases. He initially harbors an intense dislike for Dunham, due to Olivia's successful prosecution of Sanford Harris, a good friend of his. Broyles eventually warms up to her, however, impressed by her intelligence, professionalism, and ability to do her job. In the season two premiere, he shares a kiss with Massive Dynamic employee Nina Sharp, implying a past or continuing romantic relationship. He also asked a Senator to refer to him as "Colonel" during a closed hearing stating that was his designation through "six wars." He then said "or Special Agent if you prefer".

There was a case a long time ago that Broyles became obsessed until it eventually broke up his marriage. In the episode "Earthling," he closed the case. He told his now re-married ex-wife Diane and she responded that she was happy for him. It was also revealed that he has kids.

The Other Universe version of Phillip Broyles, referred to as Colonel Broyles, is in charge of the alternate Fringe division, directly answering to Secretary Bishop. He is still married to Diane, and live together with her and their two children, Christopher - who suffers both physical and psychological trauma following being kidnapped - and a daughter. Alt-Broyles is killed when helping Olivia escape the parallel universe.

In Marionette, Broyles used the title 'Colonel' on the phone while investigating organ theft.

Astrid Farnsworth

Astrid Farnsworth (played by Jasika Nicole) is an FBI Junior Agent who serves as Olivia's assistant. She is stationed in the lab with Walter, who can never remember her name (e.g. calling her "Astrick", "Aspirin", "Asteroid", etc.). Though her work is mostly clerical, she has a number of skills which come in handy during their cases; cryptanalysis, knowledge of Latin, linguistics, computer hacking, and so forth.

The Other Universe version of Astrid Farnsworth is a computer and statistics specialist within the Fringe division.

Charlie Francis

Charles "Charlie" Francis (played by Kirk Acevedo) is an FBI Special Agent, who holds the position of a supervisor. He is close friends with John Scott and Olivia. Olivia often comes to him with requests for manpower and other resources. Charlie is later promoted to Second-In-Command of the Fringe division, making him the immediate subordinate of Phillip Broyles. Acevedo was at first rumored to not be returning for season 2, but this was soon proved false. In the premiere of Season 2, Charlie Francis is killed and replaced by a shapeshifter. The shapeshifter is later killed by Agent Dunham in episode 4 of season 2. Charlie's death weighs heavily on Olivia's guilt, due to her inability to identify the shapeshifter sooner and the danger of their division's work.

The Other Universe version of Charlie Francis is alive and an agent of the alternate and more powerful Fringe division. He first appears in the parallel universe in the two-part Season 2 finale "Over There" and is currently part of Season 3.

John Scott

John Scott (played by Mark Valley) is an FBI Special Agent who, in the pilot episode, is Olivia's partner and lover. During an investigation of a flesh-dissolving toxin, John is exposed to the toxin after the lab producing it explodes with him nearby. He is placed in a medically-induced coma, and during this time Walter devises a procedure to link his mind to Olivia's in order to gain information about the suspect who caused the explosion. With that information, they locate the suspect, from whom they gain the necessary understanding of the chemical to cure John. Shortly thereafter, it is discovered that John himself financed the creation of the toxin. This connection ties him to "the Pattern", the incidents investigated by the Fringe Division, making him a suspected terrorist. A subsequent high-speed chase results in John's death, leaving Olivia to question not only John's true loyalty, but also his love for her.

Following his death, John's corpse is secretly delivered to Massive Dynamic, to serve as an information gathering source.

As a result of their mental link, part of John's consciousness is transferred to Olivia, allowing her to communicate with him through hallucinations and dreams. Her mind begins integrating and purging his consciousness, resulting in her mistaking his memories for her own. He also continually tells her that he loves her "always", and intends to prove it to her. While following his "ghost" she discovers a hideout of his where he seemed to be conducting an independent investigation into the "pattern". She also finds an engagement ring with the word "always" written inside, suggesting John was intending to propose to her, which she takes as a personal keepsake.

Before his consciousness disappears completely, Olivia learns that John was working undercover for the NSA, infiltrating ZFT, by now known to be the organization responsible behind "the Pattern", and that, whatever relationship the two of them had, was real. Admitting her love for him, Olivia says her goodbyes to John before he fades away forever. Olivia later tells Broyles that even though John is still considered a traitor by the FBI, she knows in her heart that he was a hero.

Mitchell Loeb

Mitchell Loeb (played by Chance Kelly) is a FBI agent, and a member of the bio-terrorist organization ZFT, as lead by David Robert Jones.

Loeb originally appears as a loyal FBI agent attacked by a lethal parasite that threatens to slowly kill him. Walter is eventually able to kill off the parasite, thanks to the information given by bio-criminal David Robert Jones. However - it is soon shown that Loeb and his wife is in fact secretly working for Jones.

Putting together Walter's untested teleportation device, stolen from several individual safe-deposit boxes, and using a mathematical equation and a device that allows him to temporarily disrupt the particles in a solid object and pass through them, Loeb is eventually able to teleport Jones out of the prison, freeing him.

With Jones out of the prison, Loeb - still working for the FBI - abducts Olivia on behalf of Jones. Olivia is however able to escape, but begins suspecting that Loeb was the one kidnapping her. While paying a visit to Loeb's home, looking for anything to support her suspicions, Olivia gets into a gunfight with Loeb's wife Samantha, killing her. When Loeb eventually learns about his wife's death, he confess to his involvement with Jones, and is incarcerated.

Sanford Harris

Sanford Harris (played by Michael Gaston) was originally a high-ranking officer of the United States Marine Corps. He is a close friend of Phillip Broyles. One evening he got drunk and sexually assaulted three female Marine privates; a crime for which he was exposed and prosecuted by Olivia, resulting in several years of imprisonment. The conviction was later overturned, but Harris' career was ruined. Harris then joined the Department of Homeland Security, rising in rank to become a high-level consultant for the Pentagon. He is called in to audit the procedures of the Fringe Division, and puts a clear emphasis on Olivia's actions. As his position makes him her superior officer, Olivia does her best to humor him. Harris is eventually exposed as a ZFT operative during an investigation of two pyrokinetic women. Olivia tracks Harris during his abduction of the second woman and is locked in a room with her. With her out-of-control powers, it was expected that Olivia would be vaporized when the woman exploded; Olivia instead helps her focus her powers on Harris, who is quickly incinerated.

Nina Sharp

Nina Sharp (played by Blair Brown) is a high ranking employee of Massive Dynamic who cooperates with the Fringe division. She has worked for the company for 16 years and literally owes it her life, claiming that their research helped remove her cancer and replaced her arm with a technologically advanced prosthetic. In truth, as seen in "Peter", she lost her arm while trying to prevent Walter from transporting to the other universe to cure the alternate Peter. In "The Cure", she claimed to have known Walter (presumably before he was institutionalized) and to have met Peter when he was a toddler. In the season 1 finale, she is non-fatally shot in an elevator and an extremely powerful energy source hidden in her bionic arm is stolen by David Robert Jones. She later arranges for Olivia to meet with William Bell. In the season two premiere, it is implied that she and Special Agent Broyles once shared a romantic relationship, and that she might still harbor feelings for him. It was revealed in the episode "Of Human Action", that she has been trying to communicate with William Bell through an old computer but is not sure if he is receiving the messages. She usually knows more about cases than she lets on, or is actually behind them like in "Of Human Action."

William Bell

William Bell (played by Leonard Nimoy) is the founder of Massive Dynamic and the former lab partner of Walter Bishop.

Consistently mentioned throughout the series, Bell didn't appear on-screen until the season one finale. Prior to this, he is spoken of by Walter, as well by Nina Sharpe of Massive Dynamic. It is revealed that Bell and Walter were close friends in their youth, sharing their lab, as well as their dreams of scientific explorations. In the beginning of the 1980s, they came to conduct a series of experiments on children (including a young Olivia Dunham), using a drug called Cortexiphan. They eventually came to part ways, with Bell creating Massive Dynamic, and Walter continuing his experiments, which eventually had him institutionalized.

As Olivia's suspicions that Bell is responsible for "the Pattern" slowly grows over the course of the first season, she frequently asks Nina Sharpe to arrange a meeting between the two of them. Eventually she is told that Bell is willing to meet her, and she is taken into a parallel universe, where Bell is shown to reside in an office within the South Tower of the still-standing World Trade Center. While there, Bell reveals a lot of information about the parallel universe as well as the invasion that will happen, though he warns Olivia that her memories of their meeting may end up being lost or disjointed from traveling across dimensions. Bell tells her to look out for a man with a unique mark on his head and to stop him from being revived, though Olivia fails to do so. The man is revealed to be Thomas Jerome Newton, the leader of the shapeshifters.

In the episode "Grey Matters", it is revealed that 17 years ago, Bell and Walter Bishop agreed to have the latter's brain tissues, which contain knowledge of opening the dimensional gateway, removed. Bell convinces Walter that the knowledge must be kept safe from harmful elements who may exploit it. Using the alias Dr. Simon Paris, Bell personally oversaw Walter's brain tissue removal surgery, which to some extent caused Walter's mental disability. Later, Bell installed those tissues into three patients in different mental hospitals in order to preserve the tissues' lifespans and have them committed indefinitely for safekeeping. However this plan ultimately fails, when the shapeshifters remove the tissues from the patients and reconnect them to Walter's brain in order to access the information.

In the end of season 2, as Olivia returns to the parallel universe, this time alongside Walter, Peter, and a group of other former Cortexiphan children, Bell helps Olivia rescue Walter from the hospital after he has been wounded. As the group and Bell is about to return to our universe, Bell reveals that his atoms are so unstable he could not survive crossing over again because he has done it so many times. He provides the power from his own body as the energy needed to return Altivia (pretending to be Olivia), Walter, and Peter home, dying in the process. Before they leave, Bell tells Walter that the reason he removed parts of Walter's brain was that because Walter asked him to, "Because of the man you were becoming".

As Bell's last will and testimony is read, it is revealed that he has left Massive Dynamic entirely to Walter.

Not much is revealed about the parallel universe version of Bell, only that he and the alternate version of Walter never had the chance to meet, because the young William was killed in a car accident. This resulted in changes, such as Massive Dynamic never being founded in the second world.

Brandon Fayette

Brandon Fayette (played by Ryan McDonald) is the leading scientist at Massive Dynamic, offering assistance to the Fringe team on multiple occasions.

The Other Universe version of Brandon is the chief scientist of the Fringe division, often answering directly to Secretary Bishop, and responsible for the assimilation of A-Universe Olivia into Altivia.

David Robert Jones

David Robert Jones (played by Jared Harris) is a biochemist and former employee of William Bell and Massive Dynamics, a connection that wasn't revealed until the season one finale. Over the course of the first season, he is also proven to be the leader of ZFT, the organization responsible for most incidents investigated by the Fringe Division during season one.

First appearing in the series while imprisoned in a German prison, Jones soon becomes the main antagonist of season 1. He is first shown whilst being contacted by Olivia, who is trying to find the antidote for a parasite in Agent Loeb's body. Jones agrees to help her, but only in exchange for the opportunity to ask an associate one question. The response is a coded message picked up by Loeb, who is secretly working for Jones.

Receiving Jones' message, Loeb is soon able to proceed in creating a teleportation device once designed by Walter Bishop, and successfully teleports Jones out of prison, freeing him.

In "Ability" Jones turned himself over to the FBI, in exchange for Walter's help with the death-threatening side-effects of his teleportation. He then presents Olivia with a test: to prevent a biological bomb from detonating by turning off a series of lights only using her mind. Eventually, Olivia is able to do this, thanks to Walter's and Bell's Cortexiphan experiments conducted on her whilst a child. Jones then disappears again, leaving only a cryptic message: "You Passed".

In the season 1 finale, Jones' former relationship to William Bell is revealed, as is his goal of trying to escape to the parallel universe to confront Bell, whom Jones believes never saw his true potentials. Everything done by Jones since his introduction in the series has been either to be able to get in contact with Bell, or to prove himself worthy of Bell's approval.

He finally succeeds in opening a portal to the parallel universe, where Bell is located. However, the portal is dangerously unstable, threatening to cause severe harm to both universes, but Peter is able to close the portal in time for it not to result in any real disaster. Jones, being only halfway through the portal, is however cut in half and dies immediately.

September (The Observer)

September (played by Michael Cerveris), often referred to as the Observer, is a mysterious figure seen at the scene of many Pattern-related events. He consistently wears a suit, is bald and has no eyebrows. He doesn't appear to visibly age, and has a number of odd habits (such as ingesting a large quantity of spicy foods without a single reaction - which is probably because he has problems with taste sense indicated in episode where Bishop asks him to try his root beer float to which he replies "I probably would not taste it"). He has also been shown to be telepathic to some degree, and possesses unusual pieces of technology. He has appeared (albeit very briefly) in every episode thus far. In the episode "The Arrival", he was tracking a mysterious metal cylinder that burrowed its way up from the ground. At the end of the episode it burrowed its way back into the ground and he called someone to inform them the departure was "on schedule." Afterward, Walter told Peter that a man that looked identical to the Observer once saved them when their car crashed into an icy lake a long time ago.

Near the end of the episode "Inner Child", it is hinted that there are many Observers. Evidence includes the appearance of a child with similar features as the Observer, who shares an ominous glance with the real Observer in the last scene. Earlier in the episode, the C.I.A. agent mentions "we may have found another one" on his cell phone. He was also seen speaking to someone on a cell phone in "The Arrival" discussing the beacon. In the episode "August", it is confirmed that there are others as we see September conversing with 3 other observers and the title character of the episode, referred to as August on screen, is an Observer. A later episode, "Peter", established that the Observers exist in the parallel Earth as well, with September apparently able to move between them.

At the end of the episode "The Road Not Taken", he tells Walter it's "time to go" and Walter walks off with him. In the season one finale, we find out that the Observer took Walter to help him find the device that can close a portal to the parallel universe.

At the end of the season two episode "Fracture", the Observer is seen to have at least one briefcase with pictures of Walter in it. The season two episode "August", is devoted almost entirely to the mysteries surrounding the Observer. This is the first time that multiple Observers are shown at the same time; along with August and September, two other observers - July and December - appear. They all appear to be named after months and dress identically. It also is shown that the Observers can move fast enough to catch bullets fired at them, and that Observers have been recorded at historic events for thousands of years (through paintings and photographs). A conversation between the Observer 'August' and Walter suggests that the Observers are enforcers, policing both travel between the two dimensions and disruptions in time.

The Observer is also seen on occasion in other Fox programs. For example, on April 7, 2009, the Observer was seen on American Idol. He was on the front row and clearly shown near the beginning of the episode. This appearance, along with others at televised sports events, including a close-up appearance at the 2009 Major League Baseball All-Star Game, is part of a viral marketing campaign by Fox Television. The Observer's latest appearance outside of Fringe was on November 15, 2009 at a football game between the Dallas Cowboys and the Green Bay Packers. However, unlike his previous appearances, the observer is now seen sitting next to a similar looking man, indicating the possible existence of multiple observers.

The Observer was named in the credits of "The Arrival" as "September". Although the accuracy of this was debated, with fansites suggesting it was an error, the later episode "August", while it did not confirm Cerveris' Observer's name, did introduce another Observer referred to on screen by the name August.

There is a featurette titled "Beyond the Pattern: The Mythology of Fringe" in the Extras section on disc 4 of season 2 of the Blu-Ray release. In this featurette, Pinker referred to both August and September by name while discussing the episode titled "August" which verifies that September is indeed his name.

Listings of The Observer Sightings complete with pictures, document his appearance in every episode.

The Shapeshifter

The first shapeshifter to be shown in the series first appears in the season two premiere, "A New Day in the Old Town". Traveling from the parallel universe, he pursues Olivia Dunham back into our dimension, after her meeting with William Bell.

Arriving in our dimension as George Reed (played by Michael Mitchell) he soon finds, kills, and takes the likeness of a random apartment resident named Lloyd Parr (played by Luke Goss). Tracking down Olivia, he kills and impersonates a nurse attending to her (played by Simone Kessell), and begins to interrogate Olivia for any information from her meeting with Bell. When Olivia, suffering from amnesia, isn't able to give the shapeshifter what he wants, the shapeshifter attempts to kill her, but is interrupted by Amy Jessup. Taking up the chase for the shapeshifter, Charlie Francis ends up struggling with him, and supposedly kills him. However it is revealed at the end of "A New Day in the Old Town" that the shapeshifter killed Charlie and now has taken his place. For some time the shapeshifter is able to infiltrate the Fringe Division, receiving his orders and reporting back to his dimension by means of a special typewriter. Eventually, Olivia realizes what "Charlie" really is and kills the shapeshifter, thus avenging Agent Francis' death.

The presence of shapeshifters was first documented by Walter Bishop years prior to his mental breakdown, during an experiment to open a person's "third eye". While under the influence of drugs, one of Walter's test subjects, Rebecca Kibner, became aware of the other dimension, and mentioned the shapeshifter's characteristics and methods for shapeshifting.

Shapeshifters are recognized by having 45% mercury in their blood. They have been shown to possess superhuman strength, and are resilient to bullet wounds; a strong blow to the head, like a bullet wound, will however kill them. In order to change shape, a shapeshifter crushes his own skull into a deformed shape and then uses a device that allows him to connect himself to the person he is to replicate, via a three-pin plug into the roof of their mouths. Without the shapeshifting device, which is attuned to a specific owner, a shapeshifter will be unable to change into anyone else and slowly die if he doesn't receive a new device.

In Season three, episode four, "Do Shapeshifters Dream of Electric Sheep?", it is revealed that shapeshifters have a data storage disc located at the base of their spine.

According to William Bell, the shapeshifters were created in order to withstand the negative side-effects a normal human will be unable to from passing through dimensions.

Thomas Jerome Newton

Thomas Jerome Newton (played by Sebastian Roché) is a leader among the shapeshifters and the main antagonist of Season 2.

When Olivia is transported to the parallel universe, she meets William Bell, who warns her that the shapeshifters active in her universe are looking for Newton, since his resurrection will make it possible for the shapeshifters to re-open the gateway between their universes. Olivia is returned to her universe, but does not remember the details of her meeting with Bell in time to stop the shapeshifters from succeeding in recovering Newton's cryogenically frozen head, and revive Newton.

Headed by Newton, the shapeshifters start tracking down and extracts pieces of brain tissue from three separate mental patients. Knowing that the three pieces were once taken from Walter's brain and when reinserted, they will cause Walter to remember how to open the gateway between the universes. Newton is then able to complete his first mission; He synchronizes the brain tissues, kidnaps Walter, reinserts them into Walter's brain, and then interrogates the scientist, gathering the information he needs.

Newton later re-surfaces, experimenting in opening portals to the parallel universe. Eventually he is able to successfully bring the shapeshifters' superior - simply referred to as "Mr. Secretary" - over to our universe. When Peter goes AWOL from Fringe Division upon learning of his real origin, he finds himself tracked by Newton and other shapeshifters. As Newton is finally able to corner Peter in his hotel room, he introduces him to his superior: the parallel universe United States Secretary of Defense, and likewise Peter's real father, the alternate Walter Bishop.

As alternate Walter successfully replaces Olivia with her parallel universe version, tension between Newton and Alt-Olivia rises. When US Senator Van Horn is severely injured and revealed to be a shapeshifter, Newton orders him killed. In "Do Shapeshifters Dream of Electric Sheep?' Newton is finally caught by the FBI, but, by means of the alternate Olivia, he commits suicide before the Fringe division is able to get any information from him.

Lincoln Lee

Captain Lincoln Lee (played by Seth Gabel) is a team leader within the parallel universe Fringe division, working with Alt-Olivia and Alt-Charlie.

Agent Lee was originally introduced in the first part of the season two finale, when the Fringe division of our dimension goes to "the other side" to get Peter back. The showdown between the two Fringe divisions leaves Lee with third degree burns covering 90% of his body. Thanks to the advanced technology known in the other dimension, Lee doesn't stay away from duty for long, and after a three months medical treatment he is completely recovered.

A capable agent and a good friend to his fellow Fringe division agents, Lee seems to care deeply for Alt-Olivia and even attempted kissing her before learning she had a boyfriend.

Minor characters

Recurring characters

• August (Peter Woodward) is an Observer. He was killed after going rogue against his fellow Observers.

• Elizabeth Bishop (Orla Brady) is Peter's mother, who committed suicide several years before the series began. The parallel universe version of her is alive and well, and still married to Walternate. She bonds with her long lost son Peter, as he is taken to the parallel universe at the end of season two.

• Ella Blake (Lily Pilblad) is Rachel's daughter and Olivia's niece.

• Diane Broyles (Karen Holness) is Phillip Broyles' (ex) wife, and the mother of his two children - a son named Christopher and a daughter. While in our universe, Diane has left Phillip due to his obsession with his work, in the parallel universe, the Broyles were still happily married until the alternate Phillip was killed.

• December (Eugene Lipinski) is an Observer.

• Marilyn Dunham (Amy Madigan) is Olivia's mother. While dead since many years in our universe, she is alive and well in the parallel universe, maintaining a close relationship with her daughter.

• Rachel Dunham (Ari Graynor) is Olivia's younger sister. She is the mother of Ella and in a temporary living arrangement with Olivia during season one, due to marriage difficulties. She seems to share a mutual attraction and several mutual interests with Peter Bishop which noticeably concerns her sister. However, following her moving out of Olivia's apartment in season two, nothing further develops between them. As of season three, Rachel has reconciled with her husband Greg, and lives with him in Chicago. The parallel universe version of Rachel died in child-birth along with her daughter. It's assumed that Alternate Rachel and Alternate Olivia had a close bond.

• James Heath (Omar Metwally) was one of the children that Walter and William Bell treated with Cortexiphan. The experiments left him with the ability to exchange energy with other Cortexiphan subjects. Due to his ability he was able to help the Fringe Division to open a portal to the parallel universe at the end of season two. However - the energy needed for doing so drained Heath, which led to his death.

• Henry Higgins (Andre Royo) is a New York taxi driver in the parallel universe, becoming an ally in Olivia's struggle to get back to her original universe.

• Amy Jessup (Meghan Markle) is an FBI agent with the New York Field Office introduced in the first episode of Season 2. She quickly becomes interested in and involved with Fringe Division. She seems more open to the existence of extraordinary phenomena than most other outsiders to the group, though it is suggested at the end of the episode that this may come from a religious standpoint.

• Rebecca Kibner (played by Tegan Moss as a teenager, and Theresa Russell as an adult) is a former test subject of Walter's. When still a teenager she willingly subjected herself to hallucinogenics. During these experiments she got in contact with parallel dimension; and thus it was through Rebecca that Walter first learned about the parallel universe and some of its characteristics. Most notably she gained the ability to recognize shapeshifters. She apparently grew very fond of Walter, even sharing a kiss with him when reunited decades later.

• Nick Lane (David Call) was one of the children that Walter and William Bell treated with Cortexiphan. He was partnered with Olivia during his time being treated, and has the ability to make people around him have the same emotions as he does. After learning to control his power, he helped Olivia and Walter cross over to the other universe to save Peter. He was shot and killed by Lincoln Lee, who seemed to know the alternate Nick.

• Johan Lennox (Kenneth Tigar) is the warden of Wissenschaft Prison, the German correctional facility from where David Robert Jones escaped.

• Samantha Loeb (Trini Alvarado) is Mitchell Loeb's wife and partner in crime. She is killed in a gunfight with Olivia.

• Edward Markham (Clark Middleton) is a dealer of used books, and an old acquaintance of Peter's.

• Smith (Roger R. Cross) acts as the right hand man to the Shapeshifter and then to Thomas Jerome Newton. He is eventually shot dead by Olivia.

• Dr. Frank Stanton (Philip Winchester) is a virologist and Alt-Olivia's fiancée.

• "The Store Owner" (Stefan Arngrim) is the manager of the small Bronx typewriter shop. One of the store's back room hides one sole typewriter, through which parallel universe agents and shapeshifters comunicate with their own dimension. Years prior to Olivia joining the Fringe division, the owner had been promised to have his injured legs healed in exchange for letting the alternate agents use his store. After Alt-Olivia return from the primary universe, an alternate agent known as "the Librarian" finally injects the store owner with a fluid, effectively healing him.

• Senator James Van Horn (Gerard Plunkett) oversees the Fringe team's work on behalf of Washington. When in a car accident he is discovered to be a shapeshifter, and has been so since before Olivia joined the team. It's discovered that he has been supplying "the other side" with information about the team all along. Attempts to reactivate his memories, in order to get more information on the over-all plan of the shapeshifters and the alternate Walter, fails.

• Carla Warren (Jenni Blong) was Walter's lab assistant. She died in a fire, which resulted in Walter being sent to a mental hospital.

• Sam Weiss (Kevin Corrigan) is an acquaintance of Nina Sharp. After Olivia's first visit to the parallel universe, he helps Olivia regain her ability to walk. He begins to establish a friendship with her, and Olivia pays him another visit after learning the truth about Peter's origin. He operates a bowling alley, and his rehabilitation efforts with Olivia initially involve her practicing the sport. In the episode Olivia. In the Lab. With the Revolver., Weiss made enigmatic comments to Olivia about his past:"I'm older than I look. I barely remember my childhood. I'm also taller than I appear".

Notable one-time characters of season 1

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Notable one-time characters of season 2

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Notable one-time characters of season 3

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See also

• List of Fringe episodes