character - Megatron / Mirage / Soundwave / various characters (voice)

character - Scooby-Doo / Fred Jones (voice)

character - Abu / Joanna (voice) (archive footage)

character - William (voice)

character - Scooby-Doo / Rudy / Fred / Nefario (voice)

character - Ronnie $elfish (voice)

character - Scooby-Doo / Fred Jones / Self

character - Figaro / Butch (voice)

character - Curious George (voice)

character - Scooby-Doo / Fred Jones (voice)

character - Fred Jones / Cheese of the Future Narrator (voice)

character - Dexter's Computer / Monkey (voice)

character - Additional Voices (voice)

character - Scooby-Doo / Fred Jones / Monster (voice)

character - Tom / Jerry (voice) (uncredited)

character - Male Gallery Member / Ralphus (voice)

character - Teamster #1 (voice)

character - Ralph (voice)

character - Ralph / Clunko (voice)

character - Chicken Boo (voice)

character - King (voice)

character - Ralph / Waiter (voice)

character - Ralph / Vampire (voice)

character - Ralphicus (voice)

character - Cat (voice)

character - Priest (voice)

character - Ralph Yakko (voice)

character - Constable Ralphers / Judge Plotz (voice)

character - 23 & WB Employee / Ralph (voice)

character - Baby Boo (voice)

character - Jackass Monkey / Ralph (voice)

character - Horse (voice)

character - Scooby-Doo / Fred Jones (voice)

character - George / Additional Voices (voice)

character - Scooby-Doo / Pterodactyl (voice)

character - Announcer (voice)

character - Abu (voice) (archive footage)

character - Ambrose / Butch (voice)

character - George / Philippe (voice)

character - Scooby Doo / Fred Jones (voice)

character - Fred Jones / Scooby-Doo (voice)

character - Cave of Wonders (voice)

character - Scooby-Doo / Fred Jones (voice)

character - Luug (voice)

character - Chelidae (voice)

character - Scooby-Doo / Fred Jones (voice)

character - Councilor 2 (voice)

character - Scooby-Doo / Fred Jones (voice)

character - Scooby-Doo / Fred Jones (voice)

character - Megatron (voice)

character - Soundwave (voice)

character - Azrael (voice)

character - Astro (voice)

character - Scooby-Doo / Fred (voice)

character - Sven (voice)

character - Fred Jones / Scooby-Doo (voice)

character - (voices)

character - Scooby-Doo / Fred Jones (voice)

character - Scooby-Doo / Fred Jones (voice)

character - Fred Jones / Scooby-Doo (voice)

character - Fred / Scooby-Doo (voice)

character - Fred Jones / Scooby Doo (voice)

character - Soundwave (voice)

character - Scooby-Doo / Fred Jones (voice)

character - Curious George (voice)

character - Baby Dragon (voice)

character - Grandpa Mort (voice)

character - Mochi (voice) (uncredited)

character - Fred / Scooby-Doo (voice)

character - Galvatron (voice)

character - Scooby-Doo / Fred Jones (voice)

character - Garfield (voice)

character - Fred Jones / Scooby-Doo (voice)

character - Self

character - Cat sounds (archive footage; uncredited)

character - Mayor Stevenson / Weather Man (voice)

character - Megatron (voice)

character - Scooby-Doo / Fred Jones (voice)

character - Coco the Coconutty Monkey (voice)

character - Announcer (voice)

character - Azrael (voice)

character - Scooby-Doo / Fred Jones (voice)

character - Curious George (voice)

character - Scooby-Doo / Fred (voice)

character - Azrael (voice)

character - Fred Jones / Scooby-Doo (voice)

character - Odin (voice)

character - Garfield (voice)

character - Fred / Scooby-Doo (voice)

character - Fred Jones / Scooby-Doo / Baron Von Billfold (voice)

character - Curious George/Stig/Flint Quint

character - Mayor Stevenson (voice)

character - Scooby-Doo / Fred Jones / Dynomutt (voice)

character - Fred Jones (voice) (archive footage)

character - Fred Jones / Scooby-Doo (voice)

character - Scooby-Doo / Fred (voice)

character - Sparky (voice) (uncredited)

character - Monkey Rockwell (voice)

character - Fred Jones / Scooby-Doo (voice)

character - Mayor Stevenson / Weather Man (voice)

character - Freddie Jones / Scooby-Doo (voice)

character - Fred Jones (voice)

character - Fred Jones / Scooby-Doo (voice) (archive footage)

character - Sonya (voice)

character - Bubble Puppy (voice)

character - Mannequins / Beast (voice)

character - Scooby-Doo / Fred Jones (voice)

character - Scooby-Doo / Fred Jones / Motoshondu (voice) (archive footage)

character - Curious George (voice)

character - Higgens / Bull (voice)

character - Azrael (voice)

character - Scooby-Doo / Fred Jones / Msicellaneous Bikers (voice)

character - Scooby-Doo / Fred Jones (voice) (archive footage)

character - Scooby-Doo / Fred Jones (voice) (archive footage)

character - Fred Jones (voice) (archive footage)

character - Azrael (voice)

character - Shockwave / Soundwave (voice)

character - Bullseye (voice)

character - Bubble Puppy (voice)

character - Megatron (voice)

character - Scooby-Doo (voice)

character - Dad / Lackey (voice)

character - Napoleon / Pink Parrot / Security Guard (voice)

character - Fred / Scooby Doo (voice)

character - Dr. Frankenwagon's Monster (voice)

character - Scooby-Doo / Fred Jones (voice)

character - Bullseye / Buster / The Monkey / Pigeon (voice) (uncredited)

character - Dragon / Animals (voice) (uncredited)

character - Nuts (voice)

character - Jabberwocky / Bandersnatch / Jubjub / Bayard (additional voice)

character - Scooby-Doo / Fred Jones (voice)

character - Figaro (voice)

character - Scooby-Doo (voice)

character - George (voice)

character - Garfield (voice)

character - Coop (voice)

character - Mark Whitacre's Father

character - Scooby-Doo (voice)

character - Garfield / Garzooka / Narrator (voice)

character - Abu (voice) / Lion roars (voice) (archive footage)

character - George / Duck / Cow (voice)

character - Momma Dino (voice) (uncredited)

character - Soundwave / Devastator / Reedman (voice)

character - Fred / Scooby-Doo (voice)

character - Snortafus

character - (voices)

character - Batboy / Fred / Scooby-Doo / Scooby-Doo Batman (voice)

character - Nibbler (voice)

character - (voice)

character - Scooby-Doo / Fred Jones (voice)

character - Animals' vocal effects (voice) (uncredited)

character - Garfield / Delivery Gnome / Prop Boy / Leonard / Jeff (voice)

character - Garfield / Keith / Prop Boy / Additional Voices (voice)

character - Mr. Uno (uncredited) (Voice)

character - Nibbler / Fleb / Seymour (voice)

character - Megatron (voice)

character - Rajah / Abu (voice)

character - Fred Jones / Scooby-Doo (voice)

character - (voice)

character - (voice)

character - Lucifer (voice)

character - Chief / Baby Sasquatch (voice)

character - Scooby-Doo / Fred Jones (voice) (archive footage)

character - Scooby-Doo (voice)

character - Scooby-Doo / Fred Jones (voice)

character - George

character - Bill's Bunnies (voice)

character - Monty Uno (voice)

character - Spindle / Frog / Caterpillar (voice)

character - Sparky / Sprout / Mr. Stenchy / Kixx / Hoilo / Slugger (voice)

character - Fred Jones / Scooby-Doo / The Centaur (voice)

character - Fred Jones / Scooby-Doo (voice)

character - Goddard (voice)

character - Spinosaurus (voice)

character - George (voice)

character - Creepy Old Man / Skeleton Anteater (voice)

character - Homework the Cat (voice)

character - Additional Voices (voice)

character - Knuckles (voice)

character - Fred Jones / Scooby-Doo (voice)

character - Gorga

character - Abu (voice)

character - Fred Jones / Scooby-Doo (voice)

character - Fred Jones / Scooby-Doo (voice)

character - Professor Otto Allenford (voice)

character - Megatron / Cy-Kill / Barack Obama / Pizzeria Owner (voice)

character - Dr. Claw / Brain / Billy's Dad (voice)

character - Megatron / Soundwave / The Phantom (voice)

character - Lego NASA Officer / Mr. Potato Head (voice)

character - Megatron / Rebellion Leader / Scientist (voice)

character - Dr. Claw / Cybernetics Doctor / Robert Baratheon (voice)

character - Dr. Claw / Indian Chief / The Indian Love Boat Singer (voice)

character - Scooby-Doo / Fred Jones / Wiki-Tiki / Interviewer (voice)

character - Himself

character - Fred Jones / Scooby-Doo / Interviewer

character - Spike (voice)

character - Velociraptor (voice)

character - Goddard / Twonkies (voice)

character - Cri-Kee (voice)

character - Fred Jones / Scooby-Doo (voice)

character - (voices)

character - Fred Jones / Scooby-Doo (voice)

character - Additional Voices (voice)

character - Goddard (voice)

character - Fred / Scooby-Doo (voice)

character - Scooby-Doo / Fred Jones / Lachlan Haggart (voice)

character - Goddard (voice)

character - Reinaldo Vocal Effects (voice)

character - Additional Voices (voice) (uncredited)

character - Faffy (voice)

character - Additional Voices (voice)

character - Animal Vocal Effects (uncredited) (voice)

character - Nevins (voice)

character - Scooby-Doo (voice)

character - Goddard (voice)

character - Fred Jones / Scooby-Doo (voice)

character - (voice)

character - Kixx (voice)

character - Experiments (voice)

character - Sparky / Yin / Yang / Slushy / Kixx (voice)

character - Tanlined Ice Cream Tourist (voice)

character - Poxy (voice)

character - Mr. Stenchy: Experiment 254 (voice)

character - Skip (voice)

character - Sparky (voice)

character - Sparky (voice)

character - Ch'p (voice)

character - Fred Jones / Scooby-Doo (voice)

character - Boskov (voice)

character - Spike (voice) (uncredited)

character - Goddard / Poultra (voice)

character - Goddard/Poultra (voice)

character - Archbishop / Dying King (voice) (archive footage)

character - Scooby-Doo / Fred (voice)

character - Additional Voices (voice)