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)

Scooby-Doo, Fred Jones

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)

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

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

Iceman/Bobby Drake (voice)

Scooby-Doo / Fred (voice)

George, Bill's Bunnies (voice)

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)

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

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

Creature Voices (voice)

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

Lucifer / Bruno / Pom Pom (voice)

Nana II / Octopus (voice)

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

Woof / Ace (voice)

Max the Dog (voice)

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

Packard (voice)

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

Petey (uncredited)

Max (voice)

Fred Jones (voice)

Various (voice)

Bullseye / Buster (voice) ( uncredited)

Pegasus (voice) (archive sound)

Max (voice)

Sabor (voice) (uncredited)

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

Wendell (voice), Al / Creatures (voice), Giant Condor (voice), Buffy Vanderschmere (voice), Additional Voices (voice), Sparky / Maswich Village Mayor (voice), Brutis / Red Robe Thug #2 / Scarabs (voice), 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)

Additional Voices (voice)

Mohawk (voice)

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

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

Fred Jones (voice)

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

Orbitty (voice)

Scooby-Doo (voice)

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