Lincoln Lee

The actor was promoted to a full-time regular for the series' fourth season before departing at the end when his character remained in the alternate universe.

[5] In the episode "Over There", Captain Lincoln Lee is first introduced as a team leader for the parallel universe's Fringe Division.

While confronting intruders from the prime universe, or the Other Side, Lee is severely burnt by firestarter Sally Clark, leaving his fate uncertain.

[7] In "Stowaway", the prime universe version of Lincoln Lee is an FBI agent unaware of Fringe Division.

[8] In the fourth season premiere, in which the timeline has been reset due to Peter never having existed, Lincoln is unfamiliar with fringe science, and again meets Olivia for the first time.

[11] Describing the character as "a scientist-slash-FBI hero", Gabel first thought he was going to look like "such a doofus holding a gun"; he and the series crew contemplated "how to make me look like a scary intimidating person", and became convinced of his portrayal after seeing the finished episode.

While during shooting the episode writer/director Akiva Goldsman continually dropped hints to the actor that Lincoln Lee would be more involved in the story, Gabel had to wait the entire summer before finding out he would be returning.

Thus far, we’ve spent very little time with one version of him, the Lincoln Lee on their side, so I think that we’ll probably want to explore his character as well.

The primary universe Lincoln is a reserved "nice guy" whose thick black glasses and neatly side parted hair underscore his mundane sense of style.

While he's a capable agent, he exhibits undertones of lack of confidences in himself with respect to relationships, and feelings of inadequacy socially and professionally.

Forgoing the suit and tie, alternate universe Lincoln gravitates towards a more "bad boy" image, which consists of T-shirts, leather jackets, and spiked hair.

[15] Comic Book Resources contributor Josh Wigler wrote that "Gabel’s Lee comes at us without any real shred of history.

"[19] In the fourth season premiere – his first episode as a series regular – Jeff Jensen of Entertainment Weekly believed Gabel "made an instant, positive impression -- on us, and on the team.