John Stephenson

Big Bob Oakley / Dracula / Werewolf (voice) / Butler / C.L. Magnus / The Ghost of Redbeard (voice) / John Simms / The Witch Doctor / Mano Tiki Tia (voice) / Mr. Hyde / Dr. Jekyll (voice) / Professor Wayne / The Caveman (voice) / Samson the Strongman (voice) / Sheriff / The Zombie (voice) / Stuart Wetherby / Ghost of Elias Kingston (voice) / The Black Knight / Museum Worker (voice) / The Creeper (voice) / The Mummy of Ankha (voice) / Viking Puppet / Pirate Puppet (voice)

Bob Taylor (voice) / Zelig (voice)

Leonard Paxton

Captain Mueller / Decker / Felix / Inspector General / Karl / Major Kohler

(voice) / Colossus / Piotr Rasputin / Thunderbird / John Proudstar (voice) / Doctor Strange (voice)

(voice) / Creech (voice) / Lucas / Alberto (voice) / Mr. Thayer / Duke Jason (voice) / Scorpions Owner (voice) / Vernon Crow (voice)

Professor Crackpotkin (voice)

John Nivin

(voice) / Mr. Slate / Roller Coaster Operator (voice)

Annoucer / Chairman / Guy / Charlie (voice) / Attendant / Tiberius / Nero / Arthur / Astronomer / Cop (voice) / B.J. / Guy #1 / Al / Guy #3 / Frank (voice) / Boss Rockhead / Cop / Announce (voice) / Cop #1 (voice) / Director / Announcer (voice) / Doctor / 2nd Doctor (voice) / Doctor / Announcer (voice) / Driver / Maitre d' / Indian (voice) / Emery / Mr. John Sludge / Announcer (voice) / Fingers / Sarge / Announcer / Attendant (voice) / German Doctor / Intern (voice) / Grand Poobah / Doc / Mailman / Driver (voice) / Hailstone / Mailman / Ringmaster (voice) / Harlie / Old Man / Sergeant / Radio Announcer (voice) / Harvey Millrocks / Mailman / Editor (voice) / Joe / Foreman / Egg / Porcupine / Governor / Agency Man (voice) / Joe Rockhead (voice) / Joe Rockhead / Andre / Barker / Man #1 (voice) / Joe Rockhead / Emcee / Guy #2 / Cheers (voice) / Larry Lava / C.W. Crater / Goldrock / Joe (voice) / Mailman / Joe Rockhead (voice) / Mailman / Mailman #2 / Mr. Slate / Chief of Police (voice) / Mike / Captain / Announcer (voice) / Mr. Bourter / Charlie / General / Sergeant / Guy #1 (voice) / Mr. Rockhead / O'Shale / Hot Dog Vendor (voice) / Mr. Slate (voice) / Mr. Slate / Announcer (voice) / Mr. Slate / Arnold's Father / Coach (voice) / Mr. Slate / Card Player #1 (voice) / Mr. Slate / Catcher / Umpire / Casey / Guy #2 (voice) / Mr. Slate / Charlie / Announcer / Guy #1 (voice) / Mr. Slate / Charlie / King / Man #3 (voice) / Mr. Slate / Charlie / Principal / Announcer (voice) / Mr. Slate / Cop / Actor #1 / Actor #3 (voice) / Mr. Slate / Cowboy / Professor (voice) / Mr. Slate / Doc / Hammerslag (voice) / Mr. Slate / Dr. Ben Cavity / Sponsor / Guy #1 / Turtle (voice) / Mr. Slate / Fireman (voice) / Mr. Slate / Hat Bird / Man #3 (voice) / Mr. Slate / Man #2 / Scoutmaster (voice) / Mr. Slate / Mr. Rockhead / Buffalo / Minister #3 (voice) / Mr. Slate / Mr. Vanderock (voice) / Mr. Slate / Pelican (voice) / Mr. Slate / Pierre / Mediator / Butler (voice) / Mr. Slate / Rocky / TV Announcer / Flagman (voice) / Mr. Slate / Sarge / Dr. Firma (voice) / Mr. Slate / Shystone / Fish (voice) / Mr. Slate / Stony (voice) / Mr. Slate / Wrathrock / Wig Man (voice) / Narrator / F.M. / Boss / Guy #2 / Stonehead (voice) / Perry Gunite / Jeweler (voice) / Photographer #3 / J.J. Granite / Kid (voice) / Policeman (voice) / Rock Quarry (voice) / Rockbound / Chef / Agent (voice) / Sam (voice) / Sam / Announcer (voice) / Sandford (voice) / Scat / Rockwell (voice) / Spike / Butler / 1st Man / Cop #3 (voice) / Stan / Sam / Mac (voice) / TV Announcer / Butler / Cop / Reporter #2 / News Reader (voice)

Blubber Bear (voice)

Commissioner / DWMR Officer (voice) / Dr. Scarem (voice) / Gary Gammaray (voice)

Director

John Henry

Ed Davenport / Frank Avery / Grant Reynolds

Chef / McGee (voice) / Miguel Valdez / Nick Papas / Lord Silvertree / Sylvester

Varner

Radio Announcer (voice) (uncredited)

Mr. Landman / Professor Robert Graham

Mr. Slate

Norm Crowder

Colonel Wilcox (voice)

Kup (voice) / Thundercracker / Windcharger / Huffer

Additional Voices

Narrator (voice) (uncredited)

Mr. Slate

Jack Bennett 'Bionic-1' / Klunk (voices)

Man #1

Joel Fletcher

(voice)

Roger Crutcher

Fancy-Fancy / Fancy-Fancy (voice) / The Sergeant (voice)

Chief Winchley

Colonel Fuzzby

Colonel Fuzzby

Sheriff Bagley

Dr. Quest (voice)

The District Attorney / The Jewelry Clerk / The Quizmaster

Ganthet (voice)

Professor Charles Xavier (voice)

Mr. Slate

Number One (voice)

Dori/Great Goblin/Bard (voice)

Oompo / Dirigible Captain (voice)

Additional Voices (voice)

Gondorian Guard / Dwimmerlaik - The Witch-King of Angmar (voice)

The Sheriff (voice)

Roger (voice) (archive footage)

Bob Taylor (voice)

Mr. Slate (voice)

Mr. George Nate Slate (voice)

Farmer Arable (voice)

Additional Voices (voice)

Doggie Daddy / Mr. Dingwell (voice)

Mr. Slate (voice)

Mr. Slate (voice)

Mr. Brownlow / Mr. Grunch / Goodfriend / Butcher / Mr. Highbottl

Doggie Daddy / Butler / Announcer (voice)

(voice)

Mr. Slate / Various Voices (voice)

Post Man (voice)

Frank Frankenstone

(voice) (archive footage)

Mr. Slate (voice)

Mr. Slate (voice)

Mr. Slate (voice)

Additional Voices (voice) (archive footage)

Frank Frankenstone (voice)

Sloan / Andrew Jackson / Blacksmith (voice)

Mr. Slate (voice)

Huffer / Thundercracker (archive audio)

Richelieu (voice)

Mr. Slate (uncredited)

Zelig (voice) (archive footage)

Announcer (voice)

Frank Frankenstone / Dinosaur / Monkey #1 (voice)

Doggie Daddy / Pelican (voice)

Professor Charles Xavier (voice)

Kup

Sheriff of Nottingham / Carbuncle (voice)

Gen. Flagg (voice)

Hairy Scary / Doggie Daddy (voice)

Mr. Slate / Moderator / Investor / Poker Player (voice)

Frank Frankenstone / Mr. Slate (voice)

Kup

Count Rockula (voice)

Colonel Allen Munro / Delaware Chief (voice)

Benny the Ball / Doggy Daddy / Hardy Har-Har (voice)

Ghost (voice) (archive footage)

Hairy Scary (voice)

Workers / Additional Voices (voice) (archive footage)