Bob Hope as Host / Barf Vader

Perry Como as Luke Sleepwalker / Musical Guest

Olivia Newton-John as Princess Hialeah / Musical Guest

Mark Hamill as Luke Skywalker / Markie

Earl Campbell as Self

David Goelz as Gonzo

Jim Henson as Kermit the Frog / Rowlf

Jerry Nelson as Robin the Frog

Ozzie Newsome as Self

Frank Oz as Miss Piggy / Fozzie Bear

Dennis Thurman as Self

Doug Williams as Self

Rusty Gilligan as Danger / Singer (uncredited)

Richard Hunt as Scooter