Kermit the Frog / Rowlf / Dr. Teeth / Waldorf / Doc Hopper's Men / Link Hogthrob / Swedish Chef (voice)
Jim Henson
Miss Piggy / Fozzie Bear / Animal / Sam the Eagle / Doc Hopper's Men / Marvin Suggs (uncredited) / Swedish Chef (hands) (uncredited) / Motorcycle Guy (uncredited) (voice)
Frank Oz
Floyd Pepper / Robin the Frog / Crazy Harry / Lew Zealand / Camilla / Dr. Bunsen Honeydew (assistant) (uncredited) (voice)
Jerry Nelson
Scooter / Statler / Janice / Sweetums / Beaker / Fozzie Bear (assistant) (voice)
Richard Hunt
The Great Gonzo / Dr. Bunsen Honeydew / Zoot / Doglion / Iraqian in El Sleezo Cafe / Pig (voice)
Dave Goelz
Doc Hopper
Charles Durning