What Happened To Agent Amy Jessup On Fringe?

Junior FBI Agent Amy Jessup makes her first appearance on "Fringe" in the Season 2 premiere, an episode titled "A New Day in the Old Town." The episode centers on the return of FBI Agent Olivia Dunham (Anna Torv) from her short trip to an alternate universe. The means of travel between universes involves Dunham suddenly appearing out of thin air and flying through the front windshield of a crashed car. This is where audiences are first introduced to Jessup, who is in charge of Dunham's car crash scene. Jessup quickly begins to ask a few too many questions about Dunham's team. Shortly after that, she is coldly told by Special Agent-in-Charge Phillip Broyles (Lance Reddick) not to include any of the bizarre things she witnessed in her report. Though she manages to connect with Peter, Jessup is repeatedly frustrated by the team's lack of cooperation with her efforts to understand the weird science with which Fringe Division is tasked.

Markle made her second and final appearance in Season 2, Episode 2, titled "Night Of Desirable Objects." Here, she investigates another crime scene where she suspects a religious connection to the Fringe Division cases. She is last seen comparing documents obtained from Fringe Division to passages in the Bible. After this episode, Jessup is never seen or mentioned again, earning her a spot on the shortlist of notable characters who simply disappeared. There's no explanation as to why Markle departed from the show, but some Redditors definitely have their theories.