 | Christine Cavanaugh als Dexter / D22 / Old Man Dexter (voice) |
 | Eddie Deezen als Mandark / Executive Mandark / Overlord Mandark / Braindark (voice) |
 | Jeff Bennett als Mandark Robot / Dad / Robot #1 / Officer 9412 (voice) |
 | Kath Soucie als Mom / Head Secretary (voice) |
 | Kat Cressida als Dee Dee (voice) |
 | Tom Kenny als Curator / Village Man / Robot #2 / Computer / Man (voice) |
| Genndy Tartakovsky | Director |
| Genndy Tartakovsky | Story |
| Chris Savino | Story |
| John McIntyre | Story |
| Craig McCracken | Story |
| Amy Keating Rogers | Story |
| Paul Rudish | Story |
| Thomas Chase | Original Music Composer |
| Steve Rucker | Original Music Composer |
| Chris Savino | Storyboard Artist |
| David P. Smith | Storyboard Artist |
| Paul Rudish | Storyboard Artist |
| Genndy Tartakovsky | Storyboard Artist |
| Dan Krall | Production Design |
| Craig Kellman | Production Design |
| Paul Rudish | Production Design |
