Olivia Dunham played by Anna Torv pis an FBI agent investigated the spread of unexplained scientific phenomena, known as Fringe science.
Peter Bishop played by Joshua Jackson is a civilian consultant hired by Olivia to help his estranged father, Walter, work.
Doctor Walter Bishop is played John Noble portrays the character of a former government researcher, who was considered a mad scientist. He was institutionalized after a lab accident in which an assistant was killed.
Phillip Broyles played by Lance Reddick plays a the chief Homeland Security agent in the Fringe Division.
Nina Sharp played by Blair Brown is the Chief Operating Officer of Massive Dynamic, a scientific firm leading in technology research.
Astrid Farnsworth played by Jasika Nicole is an FBI Junior Agent who assists Walter in his lab.
Charlie Francis played by Kirk Acevedo plays Olivia's partner. He is also an FBI agent working in the Fringe division.
In the picture the cast follows in order from right to left. Please ignore the second picture on the bottom, this member is not relevant to this episode.
Fringe is a show that follows the story and casework of Olivia Dunham, and agent for the FBI's Fringe division. Wikipedia's plot summary of the show states,
"Fringe follows the casework of the Fringe Division, a Joint Federal Task Force supported primarily by the Federal Bureau of Investigation, which includes Agent Olivia Dunham; Dr. Walter Bishop, the archetypal mad scientist; and Peter Bishop, Walter's estranged son and jack-of-all-trades. They are supported by Phillip Broyles, the force's director, and Agent Astrid Farnsworth, who assists Walter in laboratory research. The Fringe Division investigates cases relating to fringe science, ranging from transhumanist experiments gone wrong to the prospect of a destructive technological singularity to a possible collision of two parallel universes. The Fringe Division's work often intersects with advanced biotechnology developed by a company called Massive Dynamic, founded by Walter's former partner, Dr. William Bell and run by their common friend, Nina Sharp. The team is also watched silently by a group of bald, pale men who call themselves "Observers".
Season 1 introduces the Fringe Division as they investigate cases that form "the Pattern", many orchestrated by an international network of rogue scientists, known as ZFT (Zerstörung durch Fortschritte der Technologie, or in English, Destruction through advances in technology), who are preparing for a doomsday event. Olivia comes to learn she was a child test subject for Walter years ago for a nootropic drug, Cortexiphan, giving her weak psionic abilities. Walter also struggles with adjusting to normal life in Peter's care after living several years in a mental institution, and hides a secret about Peter's past from him."
