Frank Welker

Xenophages (voice) (uncredited)

Manta Ray (voice) (uncredited)

T-Rex (voice) (uncredited)

Pter Ptarker (voice) (uncredited)

Fasolasuchus (voice) (uncredited)

The Phoenix (voice) (uncredited)

Lion (voice) (uncredited)

Giganotosaurus (voice) (uncredited)

Gigi (voice) (uncredited)

Parce (voice) (uncredited)

Figaro / Butch (voice)

Scooby-Doo / Fred Jones (voice)

Additional Voices (voice)

Scooby-Doo / Fred Jones / Monster (voice)

Tom / Jerry (voice) (uncredited)

Scooby-Doo / Fred Jones (voice)

George / Additional Voices (voice)

Scooby-Doo / Pterodactyl (voice)

George / Philippe (voice)

Fred Jones, Scooby-Doo

Cave of Wonders (voice)

Scooby-Doo / Fred Jones (voice)

Riot (voice) (uncredited)

Scooby-Doo / Fred Jones (voice)

Muspelheim (voice) (uncredited)

Scooby-Doo / Fred Jones (voice)

Megatron (voice)

Azrael (voice)

Astro (voice)

Sven (voice)

Scooby-Doo / Fred Jones (voice)

Soundwave (voice)

Baby Dragon (voice)

Mochi (voice) (uncredited)

Fred Jones / Scooby-Doo (voice)

Galvatron (voice)

Scooby-Doo / Fred Jones (voice)

Fred Jones/ Scooby-Doo (voice)

Cat sounds (archive footage; uncredited)

Mayor Stevenson / Weather Man (voice)

Megatron (voice)

Fred Jones / Scooby-Doo (voice)

Odin (voice)

Mayor Stevenson (voice)

Scooby-Doo / Fred Jones / Dynomutt (voice)

Fred Jones / Scooby-Doo (voice)

Scooby-Doo / Fred Jones (voice)

Mayor Stevenson / Weather Man (voice)

Sonya (voice)

Mannequins / Beast (voice)

Azrael (voice)

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

Shockwave / Soundwave / Barricade (voice)

Bullseye (voice)

Megatron (voice), Soundwave (voice), Skyquake (voice)

Scooby-Doo (voice)

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

Dragon / Animals (voice) (uncredited)

Red Death (voice) (uncredited)

Scooby-Doo / Fred Jones (voice)

Don Coyote / Dapple (voice)

Scooby-Doo (voice)

Cat Beast (voice) (uncredited)

George / Duck / Cow (voice)

Momma Dino (voice) (uncredited)

Soundwave / Devastator / Reedman / Grindor (voice)

Nibbler (voice)

Animals' vocal effects (voice) (uncredited)

Baby Bird (voice)

Nibbler / Fleb / Seymour (voice)

Megatron

Mr. Stenchy: Experiment 254 (voice), Sparky (voice), Skip (voice), Tanlined Ice Cream Tourist (voice), Poxy (voice), (voice), Sparky / Yin / Yang / Slushy / Kixx (voice), Experiments (voice), Kixx (voice)

Iceman/Bobby Drake (voice)

Scooby-Doo / Fred (voice)

Bill's Bunnies (voice), George

Monty Uno (voice)

Spindle / Frog / Caterpillar (voice)

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

Frank the combine (voice) (uncredited)

George (voice)

Furrball / Byron Basset (voice)

Fred Jones / Scooby-Doo (voice)

Fred / Scooby-Doo (voice)

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

Cri-Kee (voice)

Additional Voices (voice) (uncredited)

Additional Voices (voice)

Reinaldo Vocal Effects (voice)

Gameboy (voice)

Darwin (voice)

Animal Vocal Effects (uncredited) (voice)

Nevins (voice)

Heckle & Jeckle / Quacula (voice)

Pudge (voice), Dino / Older Baby / Cat Siren (voice), Stinky / Elmo / Bloo's Owner (voice), Dino / Saber Tooth Cat (voice), President / General Guy / Man #2 / Einstein (voice)

Sparky (voice)

Curly / Narrator / Ludwig Lillyput

Spike (voice)

Additional Voices (voice)

Caboose / Rot / Seymour (voice)

Jack's Vocal Effects

Circus Baboon / Security Guard (voice)

Fred Jones (voice) (archive footage)

Fred Jones / Scooby-Doo (voice), Wakumee (voice)

Creature Voices (voice)

Monkey Ninjas (voice), Frank (voice), Roachie (voice), Additional Voices (voice), (voice)

Lucifer / Bruno / Pom Pom (voice)

Nana II / Octopus (voice)

Bibi (voice), Gorillas (voice), Manu (voice), Dumont as Gibbon (voice), Apes (voice), (voice), Primates (voice)

Woof / Ace (voice)

Max the Dog (voice)

Bad Gargantians (voice), Senator (voice), Grubs / Brain Pod (voice), Brain Pod #26 / Grubs / Computer Voice (voice), Dad (voice), Epoch / Senator / Phlegmex / Alien Guard (voice), Epoch (voice), Bat Creature / Slime Beast / Jessica / Stratoshrike (voice), Pteradoc / Tarpax (voice), Ranger / Tentacled Alien (voice), Maw / Little Maw / Radio Announcer / Tangean Terrorists (voice), Narlzak / Strato-Shrike (voice), Grub (voice), Ranger (voice), Brain Pod #17 (voice), Additional Binipinardians (voice), Shape / Creature (voice), Brain Pod #39 (voice), Grubs (voice)

Packard (voice)

Wire-Operated Samurai (voice), Magister #3 (voice)

Petey (uncredited)

Max (voice)

Fred Jones (voice)

Bullseye / Buster (voice) ( uncredited)

Pegasus (voice) (archive sound)

Max (voice)

Sabor (voice) (uncredited)

Tardigrades (voice), Nibbler (voice), Nibbler / Pygmy Hyena Moles (voice), Mountain Lion (voice)

Megatron (voice)

Spike / Monkeys / Scar Snout (voice) (uncredited)

Pegasus (voice)

Khan / Cri-Kee (voice)

Ayden (voice)

Phillippe / Sultan (voice)

Various Martians (voice)

Charles the Dog (voice)

Tickles (voice)

Assassimon (voice) (uncredited)

Special Vocal Effects (voice)

Grizzly Bear (voice)

Shao Kahn / Reptile (voice)

Special Vocal Effects (voice)

Furrball / Gogo Dodo / Byron Basset / Calamity Coyote / Little Beeper / Gremlin / Additional Voices (voice)

Bigfoot (voice)

The Devil/Station/Evil Easter Bunny (voice) (uncredited)

Velociraptor (voice)

Bubble Puppy (voice)

Alien Creature (voice)

Special Vocal Effects (voice)

Horror (voice)

Additional Voice Overs (voice)

Mastadge (voice)

Special Vocal Effects

Phurba (voice)

Additional Voices (voice), Lions Roars (voice) (uncredited)

Orbit / Veenie

Baby Oopsiy Daisy

Creatures (voice)

Special Vocal Effects (voice)

Brain / Dr. Claw / M.A.D. Cat / Santa Claus (voice)

Abu / Cave of Wonders / Rajah (voice)

Isis (voice), Thug (voice), Werewolf FX (voice)

Uncle Stinky Pig / Byron Basset / Furrball / Little Beeper / Gogo Dodo / Vinnie / Mac Duff / Additional Voices (voice)

Footstool (voice)

Alien Gen. Suitor (voice) (uncredited)

Eek / Squeak / Archie (voice)

Sharak / Kodo / Podo / Ruh (voice)

Bunny the Dog (voice)

Rahzar / Tokka (voice)

Brutis / Red Robe Thug #2 / Scarabs (voice), Pilot Jack / Gorilla-Birds (voice), Henry / Inkaras / Gator Policeman (voice), Dimple (voice), Captain Hotspur (voice), Wildey Pole / Additional Voices (voice), Buffy Vanderschmere (voice), Additional Voices (voice), Sparky / Maswich Village Mayor (voice), Red Robe Thug #2 / Scarabs (voice), Al / Creatures (voice), Giant Condor (voice), Wendell (voice)

Additional Voices (voice)

Mohawk (voice)

Santa's Little Helper / various animals (voice), (voice)

Max (voice)

The Monster (voice)

Sharptooth (voice) (uncredited)

Crunch (voice)

Additional adult voices

Bo / Booker / Sheldon (voice)

Dumbo (voice) (uncredited)

Bigtime Beagle / Penguin Leader (voice)

Torch / Wild Bill (voice)

Special Vocal Effects (voice)

Dr. Phorbus

Ray Stantz (voice) / Slimer (voice)

Megatron / Soundwave / Rumble (voice)

Toby the Dog / Felicia the Cat (voice) (uncredited)

Special Vocal Effects

Tooter Shelby/ Occy/ Grandpa Wetworth/ Great Snork Nork/ Finneus

Stripe / Mogwai / Gremlins (voice)

Spock's Screams

Tom / Jerry / McWolf (voice)

Rock 'n Roll / Short-Fuse / Wild Bill / Timber (voice)

Fairy Godmother / Additional Voices

Special Vocal Effects (voice) (uncredited)

Doing (voice)

Fred Jones / Scooby-Doo (voice)

Jabberjaw

Dai Gui (voice), Magister #3 (voice), Animals (voice)

Toyman (voice), Marvin White (voice), Darkseid (voice)

Fred Jones (voice)

Orbitty (voice)

Scooby-Doo (voice)

McWolf / Dweeble / Wild Mouse / Grunch the Caveman (voice)