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Bill Cosby as Fat Albert Robertson / Bill / Mushmouth / Mudfoot Brown (voice) |
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Eric Suter as Rudy (voice) |
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Gerald Edwards as Weird Harold (voice) |
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Jan Crawford as Russell / Bucky (voice) |
| Visual Effects | Larry White | Animation |
| Writing | Bill Danch | Writer |
| Production | Bill Cosby | Executive Producer |
| Art | Wendell Washer | Storyboard Artist |
| Production | Norm Prescott | Producer |
| Writing | Dan DiStefano | Writer |
| Visual Effects | Ed Friedman | Animation Director |
| Production | Lou Scheimer | Producer |
| Crew | R.W. Pope | Cinematography |
| Editing | Joe Gall | Editor |
| Sound | Robert Waxman | Music Editor |
| Visual Effects | Marsh Lamore | Animation Director |
| Writing | Bill Cosby | Characters |
| Art | Rich Fogel | Storyboard Artist |
| Sound | George Mahana | Music Supervisor |
| Sound | Norm Prescott | Music |
| Art | Alberto De Mello | Art Direction |
| Sound | Robert Waxman | Sound Effects Editor |
| Art | Tom Minton | Storyboard Artist |
| Sound | George Mahana | Sound Effects |
| Sound | Ray Ellis | Music |
| Visual Effects | Gwen Wetzler | Animation Director |
| Art | Mike Joens | Storyboard Artist |
| Art | Larry Latham | Storyboard Artist |
| Art | Eddie Fitzgerald | Storyboard Artist |
