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.

Popular with kids and teenagers, the talented "Welcome Back, Kotter" cast was notable for bringing big screen star John Travolta to national attention and turning him into a teen heartthrob.

Debralee Scott (April 2, 1953 – April 5, 2005) was an American comedic actress best known for her roles on the sitcoms Welcome Back, Kotter; Angie; Mary Hartman, Mary Hartman; and Forever Fernwood.