| Person | Type | Job | Role(s) | Episodes |
|---|---|---|---|---|
 Ed Scharlach | Crew | Writing | Writer | 3 |
James Krieg | Crew | Writing | Writer | 3 |
Joe Ruby | Crew | Writing | Characters | 42 |
 Joseph Barbera | Crew | Production | Executive Producer, Producer | 42 |
Ken Spears | Crew | Writing | Characters | 42 |
Margaret M. Dean | Crew | Production | Line Producer | 2 |
Scott Jeralds | Crew | Directing | Director | 1 |
Swinton O. Scott III | Crew | Directing | Director | 3 |
Tom Sheppard | Crew | Writing | Writer | 2 |
George Doty IV | Crew | Production | Producer, Story Artist | 1 |
 Joe Sichta | Crew | Art | Art Direction | 1 |
Matt Wayne | Crew | Writing | Writer | 1 |
Sander Schwartz | Crew | Production | Executive Producer, Creator | 42 |
Tim Maltby | Crew | Directing | Director | 3 |
Tristin Cole | Crew | Art | Background Designer | 14 |
 Chuck Sheetz | Crew | Directing | Director, Producer | 5 |
Bill Canterbury | Crew | Writing | Writer | 2 |
Tom Mazzocco | Crew | Directing | Director | 1 |
Chris Brown | Crew | Writing | Writer | 3 |
 Ben Diskin | Cast | Actor | Benji / Travis / Zombie Kid #1 (voice) | 1 |
 Benito Martinez | Cast | Actor | Horatio Hidalgo (voice) | 1 |
 Bill Mumy | Cast | Actor | 1 | |
 Billy West | Cast | Actor | Jimmy Proudwolf (voice) | 1 |
 Brian Tochi | Cast | Actor | Hakimoto (voice) | 1 |
 Brian Unger | Cast | Actor | Avalanche Anderson (voice) | 1 |
 Bumper Robinson | Cast | Actor | 1 | |
 Carlos Alazraqui | Cast | Actor | Luis Santiago / Umpire (voice) | 1 |
 Casey Kasem | Cast | Actor | Norville 'Shaggy' Rogers (voice) | 42 |
 Clyde Kusatsu | Cast | Actor | Dr. Akira Onodera / Fisherman / Desk Clerk (voice) | 1 |
 Colleen O'Shaughnessey | Cast | Actress | Jingle (voice) | 3 |
 Corey Burton | Cast | Actor | Gusano Grande (voice) | 1 |
 Dan Castellaneta | Cast | Actor | Officer McBride / Police Officer (voice) | 1 |
 Daran Norris | Cast | Actor | Cowardly Lion / Mr. Reed / Sheriff (voice) | 1 |
 Daryl Sabara | Cast | Actor | Tommy / Steve (voice) | 1 |
 Dave Foley | Cast | Actor | Laslow Oswald (voice) | 1 |
 David Faustino | Cast | Actor | Curt Crunch (voice) | 1 |
 Dee Bradley Baker | Cast | Actor | Chinese Dragon (voice) | 1 |
 DeeDee Rescher | Cast | Actress | 1 | |
 Diedrich Bader | Cast | Actor | (voices) | 2 |
 Eddie Deezen | Cast | Actor | Gibby Norton (voice) | 3 |
 Eddie Santiago | Cast | Actor | Chip Hernandez, Jr. (voice) | 1 |
Eva Almos | Cast | Actress | Captain Corvina Cloyd (voice) | 1 |
 Frank Welker | Cast | Actor | Fred Jones / Scooby-Doo (voice) | 42 |
 Fred Tatasciore | Cast | Actor | Clyde / Toxic Terror (voice) | 1 |
 Gedde Watanabe | Cast | Actor | Vincent Wong (voice) | 1 |
 Greg Ellis | Cast | Actor | Detective Kang (voice) | 1 |
 Grey DeLisle | Cast | Actress | Daphne Blake (voice) | 42 |
 Harland Williams | Cast | Actor | George (voice) | 1 |
 Hector Elizondo | Cast | Actor | Dr. Gutierrez (voice) | 1 |
 Irene Bedard | Cast | Actress | Cody Long (voice) | 1 |
 James Arnold Taylor | Cast | Actor | Dr. Laslow Ostwald / Tad (voice) | 1 |
 James Horan | Cast | Actor | Dr. Fleg / Bandit (voice) | 1 |
 James Sie | Cast | Actor | (voice) | 1 |
 Jane Wiedlin | Cast | Actress | Dusk (voice) | 1 |
 Jeff Bennett | Cast | Actor | Man #1 / Burglar (voice) | 5 |
 Jennifer Hale | Cast | Actress | Linda / Gooey-Oh Creature / Zombie Kid #3 (voice) | 1 |
 Jenny McCarthy-Wahlberg | Cast | Actress | Marcy (voice) | 1 |
 Jess Harnell | Cast | Actor | Lute Player / Shane Flinty / Constable (voice) | 1 |
 Jesse Borrego | Cast | Actor | Luis Cepeda (voice) | 1 |
 Jill Talley | Cast | Actress | Frida Flora (voice) | 1 |
 Jim Belushi | Cast | Actor | Asa Buckwald (voice) | 1 |
 Jim Cummings | Cast | Actor | Broderick Bosepheus / Humongus Hammer (voice) | 1 |
 Joey Lauren Adams | Cast | Actress | Rachel (voice) | 1 |
 John DiMaggio | Cast | Actor | Sanfran Psycho (voice) | 1 |
 John Gabriel | Cast | Actor | Dr. Zola / Worker (voice) | 1 |
 John O'Hurley | Cast | Actor | Mayor Snipper (voice) | 1 |
 John Stephenson | Cast | Actor | 2 | |
Jonathan Osser | Cast | Actor | 1 | |
 Josh Peck | Cast | Actor | Damian / Kid / Zombie Kid #2 (voice) | 1 |
 Julia Sweeney | Cast | Actress | Aunt Meg (voice) | 1 |
 Kath Soucie | Cast | Actress | Susan Dinwiddie (voice) | 1 |
 Kathy Griffin | Cast | Actress | Autumn Summerfield (voice) | 1 |
 Kathy Kinney | Cast | Actress | Sheriff Ellen Perkins (voice) | 1 |
 Kevin McDonald | Cast | Actor | Julian Libris (voice) | 1 |
 Kevin Michael Richardson | Cast | Actor | Announcer / Red Guy (voice) | 1 |
 Laraine Newman | Cast | Actress | Wor-El (voice) | 1 |
Larc Spies | Cast | Actor | Andy Dinwiddie (voice) | 1 |
 Larry Drake | Cast | Actor | Moss T. Meister / Burglar #2 / Scooby Snax Monster (voice) | 1 |
 Lauren Tom | Cast | Actress | Mandy Dinwiddie (voice) | 1 |
 M. Emmet Walsh | Cast | Actor | Jeb (voice) | 1 |
 Mako | Cast | Actor | The Ancient One (voice) | 1 |
 Mark Hamill | Cast | Actor | Barge Captain (voice) | 1 |
 Matt Levin | Cast | Actor | Ticket Taker / Matt (voice) | 1 |
 Maurice LaMarche | Cast | Actor | (voices) | 1 |
 Michael Horse | Cast | Actor | Leon Strongfeather (voice) | 1 |
Mike Piazza | Cast | Self (voice) | 1 | |
 Mikey Kelley | Cast | Actor | Monroe Hopper (voice) | 1 |
 Mimi Rogers | Cast | Actress | Maura Ravenmane / Helga (voice) | 1 |
 Mindy Cohn | Cast | Actress | Velma Dinkley (voice) | 42 |
 Nick Jameson | Cast | Actor | Lysander Demas / Scary Looking Man (voice) | 1 |
 Nika Futterman | Cast | Actress | Rutie Banez (voice) | 1 |
 Pamela Adlon | Cast | Actress | Janey / Bobby Blather (voice) | 1 |
 Pat Fraley | Cast | Actor | Uncle Karl (voice) | 1 |
 Paul Stanley | Cast | Actor | Self (voice) | 1 |
 Peter Scolari | Cast | Actor | Professor Higginson (voice) | 1 |
 Phil LaMarr | Cast | Actor | Col. Henry Thomwald / Shaman (voice) | 1 |
 Rhea Perlman | Cast | Actress | (voices) | 1 |
 Rino Romano | Cast | Actor | Coral Creature (voice) | 1 |
 Rip Taylor | Cast | Actor | Mr. Wackypants (voice) | 1 |
 Rob Paulsen | Cast | Actor | Travis Knox / MP Guard / PA Announcer (voice) | 1 |
 Rodger Bumpass | Cast | Actor | Announcer / Steve (voice) | 1 |
 Roger Rose | Cast | Actor | Sparrow Man / P.A. Announcer (voice) | 1 |
 Ron Perlman | Cast | Actor | Inspector Malpumpkin / Joe / Frozen Fiend (voice) | 1 |
 Ryan Sheckler | Cast | Actor | (voice) | 1 |
Stacie Chan | Cast | Actress | (voice) | 1 |
 Stacy Keach | Cast | Actor | (voice) | 1 |
 Steve Blum | Cast | Actor | Melbourne O’Reilly (voice) | 1 |
Steve Harwell | Cast | Actor | (voice) | 1 |
 Susanne Blakeslee | Cast | Actress | Penelope (voice) | 1 |
 Tara Strong | Cast | Actress | Trudy Lowe (voice) | 1 |
 Tasia Valenza | Cast | Actress | Brooke Bjork (voice) | 1 |
 Teri Garr | Cast | Actress | Sandy Gordon (voice) | 1 |
 Tom Kenny | Cast | Actor | Clown / Haunted House / Cougar Forest (voice) | 1 |
 Vanessa Marshall | Cast | Actress | Danica LeBlake (voice) | 1 |
 Vince Corazza | Cast | Actor | Zeke Zillion (voice) | 1 |
 William Schallert | Cast | Actor | Farmer P. / Neville Popenbacher (voice) | 1 |
 Chuck Comeau | Cast | Actor | Self (voice) | 1 |
David Desrosiers | Cast | Actor | Self (voice) | 1 |
 Denzel Whitaker | Cast | Actor | Jake / Kid (voice) | 1 |
 Frankie Ryan Manriquez | Cast | Actor | Ernie (voice) | 1 |
 Gwendoline Yeo | Cast | Actress | Lt. Keiko Tanaka (voice) | 1 |
 Jeff Stinco | Cast | Actor | Self (voice) | 1 |
 Khary Payton | Cast | Actor | Mitch (voice) | 1 |
 Kimberly Brooks | Cast | Actress | Luna (voice) | 1 |
 Miranda Cosgrove | Cast | Actress | Miranda Wright / Stacy (voice) | 1 |
 Moira Quirk | Cast | Actress | Mei Ling (voice) | 1 |
 Pierre Bouvier | Cast | Actor | Self (voice) | 1 |
 Rachael MacFarlane | Cast | Actress | Young Girl (voice) | 1 |
 Sébastien Lefebvre | Cast | Actor | Self (voice) | 1 |
 Taylor Lautner | Cast | Actor | Dennis (voice) | 1 |
Victoria Bruno | Cast | Cindy (voice) | 1 | |
 Jason Harris | Cast | Actor | Flapjack / Announcer (voice) | 1 |
 Paul Julian | Cast | Actor | Road Runner (voice) (archive footage) (uncredited) | 1 |
 Kerrigan Mahan | Cast | Actor | Del Stone (voice) | 1 |
 Tara Lipinski | Cast | Actress | Grey (voice) | 1 |
 Michael Gough | Cast | Actor | Drill Sergeant Payne / MP Guard (voice) | 1 |
 JC Chasez | Cast | Actor | Self (voice) | 1 |
Brett Hull | Cast | Actor | Self (voice) | 1 |
 Lindsay Pagano | Cast | Actress | Self (voice) | 1 |
Kathy Nagler | Cast | Sergeant Linda Rauch (voice) | 1 | |
Chris Klug | Cast | Actor | Self (voice) | 1 |
Beng Spies | Cast | Murph / Randy Dinwiddie (voice) | 1 | |
| Person | Type | Job | Role(s) | Episodes |
