List of Fringe Characters - Secondary Characters

The Alternate Universe version of Astrid Farnsworth is an autistic savant serving as a computer and statistics specialist in the Fringe division.

In the episode "Making Angels", the two Astrids finally meet, when alternate universe Astrid gives herself security clearance to cross over after the death of her father, to seek condolences and closure from her primary universe counterpart. It is in this same episode that we are offered a peek into the home lives of the two Astrids and why they might be so different. We learn that while both Astrids' mothers died when they were young, and they were both raised by their fathers, that alternate universe Astrid felt a sense of rejection and disapproval from her father, while the Astrid in the primary universe had a warm, loving father, whom she was close to (though she lies about this in an attempt to console her counterpart). However it is ambiguous as to whether this is a cause or effect, as alternate universe Astrid seemed to be under the impression that her father was distant due to the way she was, not that she was the way she was because he was distant, while we know nothing of how the primary universe Astrid may have been as a child.

The Other Universe version is Colonel Broyles, in charge of the alternate Fringe division and 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. In the third season episode "Entrada", Colonel Broyles sacrifices himself to give time for Olivia to escape the parallel universe. His body is later mutilated and sent to the Prime Universe as a substitution of mass so that Fauxlivia may return home. Agent Broyles later examines his body and closes his eyes out of respect. Olivia makes it clear that she intends to find a solution to the conflict between the two universes without one being destroyed, as she promised Colonel Broyles she would.

In season 4, Colonel Broyles seems to be alive, which might be explained by Peter never having existed, as his kidnapping lead to the replacement of Olivia and subsequently her escape. A now-living David Robert Jones has however tempted him into an alliance with him.

In season 5, Broyles is "The Dove" for the resistance feeding intel to the underground, he is exposed as the dove and interrogated but he is saved by Peter and Olivia in the series finale.

After the change in the timeline, Nina's backstory is altered as well. She adopted Olivia and her sister Rachel after their mother died and Olivia killed their stepfather, and consequently she and Olivia share a much closer relationship. The Nina from the alternate universe is seen to be conspiring with a revived David Robert Jones, however it's unclear if this is actually the alternate universe Nina or a shapeshifter that David Robert Jones created.

In season 5 and the future of 2036, Nina Sharp was still the director of Ministry of Science, since she was promoted at the end of season 4, appeared to cooperated with the observers. But in secret she was with the resistance and helped the Fringe team. In Anomaly XB-6783746, her identity was exposed and she was caught by Captain Windmark. To protect the plan, she killed herself.

After prime Charlie is killed in 2.01 and the shapeshifter is killed in 2.04, Charlie appears frequently in 2.11, a seeming continuity error. This can be explained, as the episode was originally filmed with season 1 but was not released until January mid-season 2.

The Other Universe version of Charlie Francis is alive and an agent of the alternate and more powerful Fringe division. The alternative Charlie ("alt-Charlie") shares many of the same traits as the prime version, although he is slightly more crass and has a small scar beneath his left eye. He also suffers from a parasite infestation in his body, a fate averted by the prime universe's Charlie in the first season episode "Unleashed".

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 nanotechnology known in the other dimension, Lee does not stay away from duty for long, and after a three months medical treatment he is completely recovered.

Lee is a capable agent and a devoted friend to his fellow Fringe division agents, risking his health by prematurely leaving his nano-regeneration chamber to help them. Lee seems to care deeply for Fauxlivia and even attempted kissing her before learning she had a boyfriend. He seems to be very bad at keeping secrets, as he immediately tells Fauxlivia that her fiancé intends to propose to her after having been told in confidence. He is in charge of the Fringe division after the death of the alternate Colonel Broyles. At first he seems to doubt himself, saying that he "feels like he's missing something, that Broyles would see something he wouldn't" ("Immortality") but he gains more confidence after apprehending the culprit.

Special Agent Lincoln Lee is an FBI agent in the prime universe, and is distinguished by his use of eyeglasses and has a generally more clean cut appearance than his counterpart. He's from Hartford, Connecticut. Agent Broyles originally introduces him to the Fringe Division in order to consult on the case of a seemingly immortal woman, whose case he had been assigned after her family was gruesomely murdered. He is at first confused by the bizarre antics of the agents and the seemingly impossible situations they investigate, but he eventually accepts it, becoming enthusiastic about the work and offering them his help whenever they need it. This version of Agent Lincoln has also developed some romantic feelings towards his Olivia, but does not fully acted upon them due to the complications caused by Peter. Later, in season 5, Agent Lee is shown to be married to Fauxlivia as they run Fringe division in the Other Universe.

Seth Gabel was upgraded to the main cast with the start of season 4. However, he will not be returning as part of the main cast of season 5.