Welcome Back, Kotter (1975-1979) Cast Then and Now, see who aged horribly!! #johntravolta Welcome Back, Kotter (1975-1979) Cast Then and Now, see who aged horribly!! Welcome Back, Kotter is an American sitcom starring Gabe Kaplan as a high-school teacher in charge of a racially and ethnically diverse remedial education class called the "Sweathogs." Recorded in front of a live studio audience, the series aired on ABC from September 9, 1975, through May 17, 1979. It provided John Travolta with his breakthrough role.
_Starring:
Gabe Kaplan Marcia Strassman John Sylvester White Robert Hegyes Lawrence Hilton-Jacobs Ron Palillo John Travolta
