Gabriel Kaplan is an American actor, comedian, and writer, best known for his role as Gabe Kotter on the television series Welcome Back, Kotter. The show, which aired in the 1970s, focused on a high school teacher and his interactions with a group of misfit students. Kaplan's performance contributed to the show's popularity and cultural impact. In addition to acting, Kaplan has pursued a career in stand-up comedy and has appeared in various films and television shows. He is also known for his work in the world of poker, where he has participated in numerous tournaments and has written about the game.