The cast of Welcome Back, Kotter was unforgettable, each member bringing something unique to the table in this classic sitcom ...

Gabe Kotter is a high-school teacher with a bunch of unruly students in his class. The student troublemakers are led by Vinnie Barbarino, who has a knack for rhyming insults.

Popular with kids and teenagers, the talented "Welcome Back, Kotter" cast was notable for bringing big screen star John Travolta to national attention and turning him into a teen heartthrob.