Alan Sacks, Co-Creator of ‘Welcome, Back, Kotter,’ Dies at 81 admin 17 hours ago USA Update Comments Off on Alan Sacks, Co-Creator of ‘Welcome, Back, Kotter,’ Dies at 81 3 Views He also worked on the 1980s films ‘Du-Beat-e-o’ and ‘Thrashin’ ’ and produced films and shows for the Disney Channel. Share Facebook Twitter Stumbleupon LinkedIn Pinterest