The cast of Welcome Back, Kotter was unforgettable, each member bringing something unique to the table in this classic sitcom ...

Before cracking jokes as Deadpool, Ryan Reynolds had his own high school mishaps—one being his famous failure in drama class. It is easy not to imagine him as the perfect fit for a sitcom like Welcome ...

Back in the seventies ... Spend an hour or two - or a full four seasons - in Mr. Kotter's classroom again, joining in the antics and reminiscing about wiseguy teachers and goofball high schoolers.