Bob Hope

Host / Barf Vader

Perry Como

Luke Sleepwalker / Musical Guest

Olivia Newton-John

Princess Hialeah / Musical Guest

Mark Hamill

Luke Skywalker / Markie

Jim Henson

Kermit the Frog / Rowlf

Jerry Nelson

Robin the Frog

Ozzie Newsome

Self

Frank Oz

Miss Piggy / Fozzie Bear

Dennis Thurman

Self

Rusty Gilligan

Danger / Singer (uncredited)