 Jim HensonKermit the Frog / Rowlf the Dog / Dr. Teeth / Swedish Chef / Waldorf / Ernie / Self | Kermit the Frog / Rowlf the Dog / Dr. Teeth / Swedish Chef / Waldorf / Ernie / Self |
 Frank OzMiss Piggy / Fozzy Bear / Animal / Sam the Eagle / Bert / Grover / Cookie Monster | Miss Piggy / Fozzy Bear / Animal / Sam the Eagle / Bert / Grover / Cookie Monster |
 Dave GoelzGonzo / Dr. Bunsen Honeydew / Zoot / Beauregard / Boober Fraggle | Gonzo / Dr. Bunsen Honeydew / Zoot / Beauregard / Boober Fraggle |
 Jerry NelsonRobin the Frog / Camilla the Chicken / Floyd Pepper / Lew Zealand / Pops / The Count / Gobo Fraggle / Herry Monster | Robin the Frog / Camilla the Chicken / Floyd Pepper / Lew Zealand / Pops / The Count / Gobo Fraggle / Herry Monster |
 Richard HuntScooter / Janice / Statler / Beaker / Gladys the Cow / Two-Headed Monster / Snowman (voice) | Scooter / Janice / Statler / Beaker / Gladys the Cow / Two-Headed Monster / Snowman (voice) |
 Kathryn MullenMokey Fraggle (voice) | Mokey Fraggle (voice) |
 Steve WhitmireTurkey / Rizzo the Rat / Wembley Fraggle / Sprocket the Dog / Lips (voice) | Turkey / Rizzo the Rat / Wembley Fraggle / Sprocket the Dog / Lips (voice) |
 Caroll SpinneyBig Bird / Oscar the Grouch (voice) | Big Bird / Oscar the Grouch (voice) |
 Karen PrellRed Fraggle / Maureen the Mink (voice) | Red Fraggle / Maureen the Mink (voice) |
 David RudmanMiss Piggy's Photographer (voice) | Miss Piggy's Photographer (voice) |
 Gerard ParkesDoc | Doc |
| TTerry AngusAdditional Muppet Performer (uncredited) | Additional Muppet Performer (uncredited) |
| DDebra SpinneyAdditional Muppet Performer (uncredited) | Additional Muppet Performer (uncredited) |
| FFred StinsonAdditional Muppet Performer (uncredited) | Additional Muppet Performer (uncredited) |
| BBob StuttAdditional Muppet Performer (uncredited) | Additional Muppet Performer (uncredited) |
