 | Toby Huss als Heckle (voice) |
 | Bobcat Goldthwait als Jeckle (voice) |
 | Dee Bradley Baker als Dinky Duck / Mighty Mouse / Sidney (voice) |
 | Billy West als Deputy Dawg / Stanley / Creeper (voice) |
 | Charlie Adler als Vincent Van Gopher (voice) |
 | Rob Paulsen als Muskie / Cleo (voice) |
 | Haley Joel Osment als Tom Terrific (voice) |
 | Robert Taylor als Demon (voice) |
| Robert Taylor | Director |
| Kim Saltarski | Development Manager |
| Mark Palmer | Development Manager |
| Mary Harrington | Development Manager |
| Robert Taylor | Development Manager |
| Atul N. Rao | Development Manager |
| Greg Van Riel | Development Manager |
| Robert Irving | Music |
| Christopher Hink | Editor |
| Michael Lessa | Line Producer |
| Donna Grillo | Casting |
| Brian A. Miller | Executive In Charge Of Production |
| Robert Taylor | Producer |
| Mary Harrington | Executive Producer |
| Eric Kaye | Music |
| Anne Michaud | Production Manager |
| Roy Wilson | Storyboard Artist |
| Robert Taylor | Writer |
| Mark Palmer | Writer |
| Atul N. Rao | Writer |
| Mary Harrington | Writer |
| Kim Saltarski | Writer |
| Greg Van Riel | Writer |
