 Jim HensonKermit the Frog / Rowlf / Dr. Teeth / Waldorf / Doc Hopper's Men / Link Hogthrob / Swedish Chef (voice) | Kermit the Frog / Rowlf / Dr. Teeth / Waldorf / Doc Hopper's Men / Link Hogthrob / Swedish Chef (voice) |
 Frank OzMiss Piggy / Fozzie Bear / Animal / Sam the Eagle / Doc Hopper's Men / Marvin Suggs / Swedish Chef (hands) / Motorcycle Guy (voice) | Miss Piggy / Fozzie Bear / Animal / Sam the Eagle / Doc Hopper's Men / Marvin Suggs / Swedish Chef (hands) / Motorcycle Guy (voice) |
 Jerry NelsonFloyd Pepper / Robin the Frog / Crazy Harry / Lew Zealand / Camilla / Dr. Bunsen Honeydew (assistant) (voice) | Floyd Pepper / Robin the Frog / Crazy Harry / Lew Zealand / Camilla / Dr. Bunsen Honeydew (assistant) (voice) |
 Richard HuntScooter / Statler / Janice / Sweetums / Beaker / Fozzie Bear (assistant) (voice) | Scooter / Statler / Janice / Sweetums / Beaker / Fozzie Bear (assistant) (voice) |
 Dave GoelzThe Great Gonzo / Dr. Bunsen Honeydew / Zoot / Doglion / Iraqian in El Sleezo Cafe / Pig (voice) | The Great Gonzo / Dr. Bunsen Honeydew / Zoot / Doglion / Iraqian in El Sleezo Cafe / Pig (voice) |
 Charles DurningDoc Hopper | Doc Hopper |
 Austin PendletonMax | Max |
 Edgar BergenHimself / Charlie McCarthy (voice) | Himself / Charlie McCarthy (voice) |
 Milton BerleMad Man Mooney | Mad Man Mooney |
 Mel BrooksProfessor Max Krassman | Professor Max Krassman |
 James CoburnEl Sleezo Cafe Owner | El Sleezo Cafe Owner |
 Dom DeLuiseBernie the Agent | Bernie the Agent |
 Elliott GouldBeauty Contest Compere | Beauty Contest Compere |
 Bob HopeIce Cream Vendor | Ice Cream Vendor |
 Madeline KahnEl Sleezo Patron | El Sleezo Patron |
 Carol Kane"Myth" | "Myth" |
 Cloris LeachmanLord's Secretary | Lord's Secretary |
 Steve MartinInsolent Waiter | Insolent Waiter |
 Richard PryorBalloon Vendor | Balloon Vendor |
 Telly SavalasEl Sleazo Tough | El Sleazo Tough |
 Orson WellesLew Lord | Lew Lord |
 Paul WilliamsEl Sleazo Pianist | El Sleazo Pianist |
 Scott WalkerSnake Walker | Snake Walker |
| LLawrence Gabriel Jr.Sailor | Sailor |
| IIra F. GrubmanBartender | Bartender |
 H.B. HaggertyLumberjack | Lumberjack |
 Bruce KirbyGate Guard | Gate Guard |
| TTommy MaddenOne-Eyed Midget | One-Eyed Midget |
 James FrawleyEl Sleezo Cafe Waiter | El Sleezo Cafe Waiter |
| AArnold RobertsCowboy | Cowboy |
