 | Frank Welker als Scooby-Doo / Fred Jones (voice) |
 | Mindy Cohn als Velma Dinkley (voice) |
 | Grey DeLisle als Daphne Blake (voice) |
 | Matthew Lillard als Shaggy Rogers (voice) |
 | Greg Ellis als Marcus Brancusi (voice) |
 | Maurice LaMarche als Archambault (voice) |
 | Peter Stormare als Wulfric von Rydingsvard (voice) |
 | Jeff Dunham als Schmatko / Conductor (voice) |
 | Carlos Ferro als Oliverio / Sisko (voice) |
 | Jess Harnell als Human Scooby-Doo / Guard (voice) |
 | Jim Meskimen als Phil Flaxman / Detective (voice) |
 | Candi Milo als Jean (voice) |
 | Hynden Walch als Lena / Joan (voice) |
 | Craig Ferguson als Whitney Doubleday (voice) |
| Andrea Romano | Casting |
| Doug Langdale | Writer |
| Phil Langone | Storyboard Artist |
| Spike Brandt | Producer |
| Tony Cervone | Producer |
| Robert J. Kral | Original Music Composer |
| Ben Jones | Director |
| Kyle Stafford | Editor |
| Ted Blackman | Art Direction |
| Eric Semones | Art Direction |
| Alan Burnett | Co-Producer |
| Amy McKenna | Line Producer |
| Sam Register | Executive Producer |
| Mark A. Keatts | Supervising Dialogue Editor |
| Mark A. Keatts | ADR Editor |
| Kelly Ann Foley | Dialogue Editor |
| Kelly Ann Foley | ADR Editor |
| Patrick J. Foley | ADR Editor |
| Patrick J. Foley | Dialogue Editor |
| Michael Garcia | Dialogue Editor |
| Michael Garcia | ADR Editor |
| Gary Marullo | Foley Artist |
| Nicole Martin | Administration |
| Liz Carroll | Administration |
| Bobbie Page | Production Supervisor |
| Ed Adams | Production Manager |
| Jay Bastian | Executive In Charge Of Production |
| Jeff Prezenkowski | Executive In Charge Of Production |
