Gabriel Kotter...Gabe Kaplan
Julie Hansen Kotter...Marcia Strassman
Vincent "Vinnie" Barborino...John Travolta
Juan Luis Pedro Phillipo de Huevos Epstein....Robert Hegyes
Vice Principal Woodman...John S. White
Freddy "Boom, Boom" Washington...Lawrence Hilton
Arnold Horshack...Ron Palillo