| Frank OzFrank Oz | => | Director / Writer / Animal / Bert / Sam the Eagle (voice) / Miss Piggy / Ocean Breeze Soap Board Member / Fozzie / Cookie Monster |
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| Jay TarsesJay Tarses | => | Writer |
| Tom PatchettTom Patchett | => | Writer |
| Ralph BurnsRalph Burns | => | Composer |
| Art CarneyArt Carney | => | Bernard Crawford |
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| Brian HensonBrian Henson | => | Additional Muppet Performer (voice) (uncredited) |
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| Brian MuehlBrian Muehl | => | Dog (voice) / Tatooey - Rat / Bear |
| Brooke ShieldsBrooke Shields | => | Customer in Pete's |
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| Bruce Edward HallBruce Edward Hall | => | Masterson - Rat / Beth Bear (voice) |
| Cyril JenkinsCyril Jenkins | => | The Minister (as Dr. Cyril Jenkins) |
| Dabney ColemanDabney Coleman | => | Martin Price |
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| Dave GoelzDave Goelz | => | Gonzo / Beauregard / Zoot / Penguin (voice) / Bill - Frog / Dr. Bunsen Honeydew / Chester - Rat / Dog |
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| Elliott GouldElliott Gould | => | Cop in Pete's |
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| Gates McFaddenGates McFadden | => | Mr. Price's secretary (as Cheryl McFadden) |
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| Gregory HinesGregory Hines | => | Roller skater |
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| Jerry NelsonJerry Nelson | => | Chicken / Granny / The Count (voice) / Camilla / Bear / Dr. Strangepork / Floyd / Dog / Pops / Lew Zealand / Crazy Harry / Penguin |
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| Jim HensonJim Henson | => | Rowlf / Ernie / The Newsman (voice) / Kermit the Frog / Swedish Chef / Horse & Carriage Rider / Waldorf / Link Hogthrob / Dr. Teeth / Granny |
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| Joan RiversJoan Rivers | => | Perfume saleswoman |
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| John LandisJohn Landis | => | Leonard Winesop |
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| Juliana DonaldJuliana Donald | => | Jenny |
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| Karen PrellKaren Prell | => | Yolanda - Rat (voice) |
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| Kathryn MullenKathryn Mullen | => | Chicken (voice) / Jill - Frog |
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| Linda LavinLinda Lavin | => | Kermit's doctor |
| Liza MinnelliLiza Minnelli | => | Herself |
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| Lonny PriceLonny Price | => | Ronnie |
| Louis ZorichLouis Zorich | => | Pete |
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| Martin P. RobinsonMartin P. Robinson | => | College Student in Audience / Bear (voice) / Additional Muppet Performer |
| Richard HuntRichard Hunt | => | Statler / Dog (voice) / Scooter / Beaker / Janice |
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| Steve WhitmireSteve Whitmire | => | Rizzo the Rat / College Student in Audience / Chicken / Baby Kermit / Lew Zealand (voice) / Gill - Frog / Dog |
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