We don't have a biography for Arnold Horshack yet. Hang in there, or go ahead and contribute one.
Appearances
Welcome Back, Kotter
Main cast, played by Ron Palillo
- Episode 1x01: The Great Debate (Sep 9, 1975)
- Episode 1x02: Basket Case (Sep 16, 1975)
- Episode 1x03: Welcome Back (Pilot) (Sep 23, 1975)
- Episode 1x04: Whodunit? (Sep 30, 1975)
- Episode 1x05: The Election (Oct 7, 1975)
- Episode 1x06: No More Mister Nice Guy (Oct 14, 1975)
- Episode 1x07: Classroom Marriage (Oct 21, 1975)
- Episode 1x08: One of Our Sweathogs is Missing (Oct 28, 1975)
- Episode 1x09: Mr. Kotter, Teacher (Nov 4, 1975)
- Episode 1x10: The Reunion (Nov 18, 1975)
- Episode 1x11: Barbarino's Girl (Nov 25, 1975)
- Episode 1x12: California Dreamin' (Dec 2, 1975)
- Episode 1x13: Arrividerci, Arnold (Dec 16, 1975)
- Episode 1x14: The Longest Weekend (Jan 6, 1976)
- Episode 1x15: The Sit-In (Jan 13, 1976)
- Episode 2x01: Career Day (Sep 23, 1976)
- Episode 4x16: The Goodbye Guy (Feb 10, 1979)