With Greg Davies' permission, Alex Horne finally gets the chance to pitch his own TV show alongside his band. Rehearsals get underway, while family friend Thora tries to relax in the room next door.
Role: John Oliver
To save Greendale from being sold, the gang searches for an eccentric computer science professor's legendary treasure hidden beneath the school.
Role: Professor Ian Duncan
The Save Greendale Committee's success is short-lived when the board votes for a corporate sellout, but Pelton, Annie and Abed might find a solution.
Role: Professor Ian Duncan
Jeff's depression over turning 40 leads him to drink himself unconscious. In his dreams, he and the gang are part of the "G. I. Joe" cartoon team.
Role: Xim-Xam / Mix-Max (voice)
Jeff counsels a smitten Duncan on how to get a date with Britta but is developing feelings of his own. An angry Hickey tries to teach Abed a lesson.
Role: Professor Ian Duncan
While Annie and Hickey's fight to get a bulletin board repaired spirals out of control, Abed and Britta go to war over spoilers of his favorite show.
Role: Professor Ian Duncan
For Troy's last day at Greendale, Abed holds a campus-wide "hot lava" fantasy game. With a comic book worth $50,000 as the prize, it's an all-out war.
Role: Professor Ian Duncan
With the mysterious Ass Crack Bandit back at Greendale, Annie and Jeff are on the case. As clues and suspicions mount, Shirley delivers shocking news.
Role: Professor Ian Duncan
As the semester ends, the anthropology final is disrupted when Shirley goes into labor and her husband, Andre, is summoned to school for the birth.
Role: Professor Ian Duncan
Working on their final anthropology diorama, Chang finds a cache of items stolen by Troy's monkey that dredge up unhappy memories for the study group.
Role: Professor Ian Duncan
On Valentine's Day, Troy and Abed compete for the attention of an assistant librarian, while Britta tries to show she's open-minded about lesbians.
Role: Professor Ian Duncan
With Chang pressing for membership in the study group, Annie's latest crush has Jeff reeling as Shirley unveils some stunning news.
Role: Professor Ian Duncan
The meaning of Christmas is lost and Abed's intense fixation on the holiday concerns the group in this special stop-motion animation episode.
Role: Professor Ian Duncan
Shirley and Abed are at odds over his plan to direct and star in his own epic religious film.
Role: Professor Ian Duncan
A death provokes a fierce debate about Pierce's religious beliefs. Britta and Annie are at odds over tactics in the Gulf oil spill fund-raising drive.
Role: Professor Ian Duncan
As the end of the school year finds Jeff at the apex of a romantic triangle, Annie ponders moving away with her hacky sack-playing boyfriend.
Role: Professor Ian Duncan
As Pierce volunteers to compose a new school song, a cheating episode in Spanish class leaves Jeff defending Britta before a disciplinary tribunal.
Role: Professor Ian Duncan
As Annie recruits Abed and Troy for a psychology class experiment, Jeff and Shirley bond over their mutual fondness for gossip.
Role: Professor Ian Duncan
When the legitimacy of his degree is challenged, lawyer Jeff Winger must return to school, where he meets a clan of misfit community college students.
Role: Professor Ian Duncan