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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for John Travolta's "Welcome Back, Kotter" role 6 letters:

VINNIE: John Travolta's "Welcome Back, Kotter" role
VINNIE: ___ Barbarino, John Travolta's role on "Welcome Back, Kotter"