The nerds are now in control of the university, as a result of Lewis Skolnick and the rest's actions in the two previous movies. A new generation of sportsmen arrive, however, determined on winning the school back. The principle, himself an ex-nerd fighter, helps them, and the nerds return to suppression. Harold Skolnick needs help from his uncle Lewis, the hero of the first two movies. Lewis, however, are not too proud of his nerd past, and won't reveal any of it, much less help his nephew. However, his wife makes him change his mind, and with help from his friends from the first two movies, they start the fight to win the school back, using classic nerd tricks.
as Lewis Skolnick
as Stan Gable
as Dudley 'Booger' Dawson, Esq.
as Betty Skolnick
as Harold Skolnick
as Ira Poppus
as Orrin Price
as Trevor Gulf
as Mason
as Steve Toyota
as Bobo Peterson
as Malcolm Pennington III
as Edith Krug
as Adam Price
as Judy
as Judge
as U.N. Jefferson
as Mr. Skolnick
as Lamar
as Takashi
as Claudette
as Motorcycle Cop
as Operator
as Cop #2
as Tina
as Ruth
as Little Old Lady
as Disc Jockey
as Sally Jo
as Wormser
as Regent Von Tercel
as Regent Butz
as Dean Ulich
as Debbie
as Biker
as Gilbert
as Dahl Papadam
as Kurd Nerd
as Cheerleader
as Lawyer
as Gas Station Attendant (uncredited)