Linda
David
Luis Rodriguez
Susan
Maria Figueroa Rodriguez
Uncle Wally
Bob Johnson
Gordon
Gina
Big Bird / Oscar the Grouch / Bruno the Trashman (voice)
Bert / Grover / Cookie Monster (voice)
Pretty Great Performances Announcer / Mr. Johnson / Count Von Count / Additional Muppets (voice)
Placido Flamingo / Additional Muppets (voice)
Telly Monster / Manolo (voice)
Elmo / Hoots the Owl / Additional Muppets (voice)
Additional Muppets (voice)
Barkley (voice) (as Fred Garbo)
Mr. Snuffleupagus (back half)
Kermit the Frog / Ernie (voice)
Self
Themselves (as Gladys Knight and the Pips)
Self (segment "Put Down the Duckie")
Yosh Shmenge (segment "Put Down the Duckie")
Self (segment "Put Down the Duckie") (as Danny De Vito)
Pee-wee Herman (segment "Put Down the Duckie") (as Pee Wee Herman)
Self (segment "Put Down the Duckie") (as Mark Ingram)
Themselves (segment "Put Down the Duckie")
Edith Prickley (segment "Put Down the Duckie")
Self (as The Pips)
Willy (uncredited)
Additional Muppets (voice) (uncredited)
Mr. Macintosh (uncredited)