Gabe Kotter (b. 1945) is a high school teacher at James Buchanan High School in Brooklyn, New York, known for his unorthodox teaching methods and his close relationships with his class of misfit students, the "Sweathogs."
Kotter graduates from Buchanan in 1963, and returns as a teacher in 1975. He works there at least until 1979. He is Jewish.
External Link[]
Wikipedia: Welcome Back, Kotter