Shaggy Rogers (voice)
Daphne Blake (voice)
Velma Dinkley (voice)
Fred Jones / Scooby-Doo (voice)
Feigenbaum / Hutch (voice) / Bumpy / Duckman / Vampire (voice)
Big Guy / Swamp Monster (voice) / Pizza O'Possum / Half-Beard Ghost / Oft-Injured Willy (voice)
McQuaid / Young Aengus (voice) / Rowan / Dr. Blum (voice)
Bill Thord / Mayor Putnam (voice) / Darren (voice)
King Ladon (voice) / Cutler (voice)
Tony / Russ / Charlie (voice) / Clown Cop / Dack / Wayne (voice)
Vandergrauff (voice) / Daughter / Edith / Mother (voice)
Saul Twinkelshine / Greg (voice) / Dean Longfellow / Russell / Joe (voice)
Dr. Buggly / Ghost of Christmas Yet to Come (voice) / Scott / Mr. Clune / Cop (voice)
Prison Guard #1 / Security Guard #1 / Security Guard #2 (voice) / Dunsbury (voice)
Wendy Palloy / Parrot (voice) / Martha / Mother / Tommy (voice)
Mallory O'Neill (voice) / Brady (voice)
Dave Mann (voice) / Donald / Father (voice)
Parker / Janitor (voice) / Bewildero / Johnny Cobra (voice)
Lord Morlack (voice) / Lydia (voice)
Miguel (voice) / George / Mayor Riker (voice)
Daniel Valentino / Mr. Sullivan / Announcer (voice) / Bayou Pierre / Dwayne (voice)
Bradwick / Headless Count (voice) / Duncan / Clive / Magician (voice)
Casper Cosgoode (voice) / Harmon / Madcap (voice)
Harvey / King Avery (voice) / Ravi / Stealin Stan / Prisoner 2 (voice)
