 | Frank Welker als Scooby-Doo / Fred (voice) |
 | Casey Kasem als Shaggy (voice) |
 | Heather North als Daphne (voice) |
 | Nicole Jaffe als Velma (voice) |
 | Jane Wiedlin als Dusk (voice) |
 | Jennifer Hale als Thorn / Queen (voice) |
 | Jeff Bennett als Jasper Ridgeway / Jack / Lifeguard #1 (voice) |
 | Kimberly Brooks als Luna (voice) |
 | Tom Kenny als Harry / Stormy Weathers / Barry / Lightning Strikes / Lifeguard #2 (voice) |
 | Phil LaMarr als Daniel Illiwara / King (voice) |
 | Michael Neill als Russell / Dark Skull / Matt Marvelous (voice) |
 | Kevin Michael Richardson als Malcolm Illiwara / Yowie Yahoo / Crocodile (voice) |
| Mark Turosz | Writer |
| Scott Jeralds | Director |
| Tristin Cole | Background Designer |
| Margaret M. Dean | Producer |
| Scott Jeralds | Producer |
| Gigi Meroni | Original Music Composer |
| Joe Gall | Editor |
| Rich Dickerson | Original Music Composer |
| Sander Schwartz | Executive Producer |
| Joseph Barbera | Executive Producer |
| Collette Sunderman | Casting |
