Welcome Back, Kotter is an American television sitcom starring Gabe Kaplan and featuring a young John Travolta. Videotaped in front of a live studio audience, it originally aired on the ABC network from September 9, 1975, to June 8, 1979.

• Gabe Kaplan
• John Travolta
• John Sylvester White
• Ron Palillo
• Robert Hegyes
• Lawrence Hilton-Jacobs
• Marcia Strassman
• Stephen Shortridge