- Mel Brooks
- Moses / Comicus / Torquemada / Jacques / King Louis XVI
- Dom DeLuise
- Emperor Nero
- Madeline Kahn
- Empress Nympho
- Harvey Korman
- Count de Monet
- Cloris Leachman
- Madame Defarge
- Ron Carey
- Swiftus
- Gregory Hines
- Josephus
- Pamela Stephenson
- Mademoiselle Rimbaud
- Shecky Greene
- Marcus Vindictus
- Sid Caesar
- Chief Caveman
- Mary-Margaret Humes
- Miriam
- Orson Welles
- Narrator
- Rudy De Luca
- Prehistoric Man / Captain Mucus - The Roman Empire (as Rudy DeLuca)
- Leigh French
- Prehistoric Woman
- Richard Karron
- Prehistoric Man
- Susette Carroll
- Prehistoric Man
- Sammy Shore
- Prehistoric Man
- J.J. Barry
- Prehistoric Man
- Earl Finn
- Prehistoric Man / Disciple - The Roman Empire
- Suzanne Kent
- Prehistoric Man
- Michael Champion
- Prehistoric Man
- Howard Morris
- Court Spokesman - The Roman Empire
- Charlie Callas
- Soothsayer - The Roman Empire
- Dena Dietrich
- Competence - The Roman Empire
- Paul Mazursky
- Roman Officer - The Roman Empire
- Ron Clark
- Stoned Soldier #1 - The Roman Empire
- Jack Riley
- Stoned Soldier #2 - The Roman Empire
- Art Metrano
- Leonardo DaVinci - The Roman Empire
- Diane Day
- Caladonia - The Roman Empire
- Henny Youngman
- Chemist - The Roman Empire
- Hunter von Leer
- Lt. Bob - The Roman Empire
- Fritz Feld
- Maitre 'D - The Roman Empire
- Hugh Hefner
- Entrepreneur - The Roman Empire
- Pat McCormick
- Plumbing Salesman - The Roman Empire
- Barry Levinson
- Column Salesman - The Roman Empire
- Sid Gould
- Barber-Bloodletter - The Roman Empire
- Ronny Graham
- Oedipus - The Roman Empire / Jew #2 - The Spanish Inquisition
- Jim Steck
- Gladiator - The Roman Empire
- John Myhers
- Leader of Senate - The Roman Empire
- Lee Delano
- Wagon Driver - The Roman Empire
- Robert Goldberg
- Senator #1 - The Roman Empire
- Alan U. Schwartz
- Senator #2 - The Roman Empire
- Jay Burton
- Senator #3 - The Roman Empire
- Robert Zappy
- Roman Citizen - The Roman Empire
- Ira Miller
- Roman Citizen - The Roman Empire
- Milt Freedman
- Roman Citizen - The Roman Empire
- Johnny Silver
- Small Liar - The Roman Empire
- Charles Thomas Murphy
- Auctioneer - The Roman Empire
- Rod Haase
- Roman Officer - The Roman Empire
- Eileen Saki
- Slave - The Roman Empire
- John Hurt
- Jesus - The Roman Empire
- Henry Kaiser
- Disciple - The Roman Empire
- Zale Kessler
- Disciple - The Roman Empire
- Anthony J. Messina
- Disciple - The Roman Empire
- Howard Mann
- Disciple - The Roman Empire
- Sandy Helberg
- Disciple - The Roman Empire
- Mitchell Bock
- Disciple - The Roman Empire
- Gilbert Lee
- Disciple - The Roman Empire
- Molly Basler
- Game Show Girl - The Roman Empire
- Deborah Dawes
- Game Show Girl - The Roman Empire
- Christine Dickinson
- Game Show Girl - The Roman Empire
- Lisa Sohm
- Vestal Virgin - The Roman Empire
- Michele Drake
- Vestal Virgin - The Roman Empire
- Jeana Keough
- Vestal Virgin - The Roman Empire
- Lisa Welch
- Vestal Virgin - The Roman Empire
- Janis Schmitt
- Vestal Virgin - The Roman Empire
- Heidi Sorenson
- Vestal Virgin - The Roman Empire
- Karen Morton
- Vestal Virgin - The Roman Empire
- Kathy Collins
- Vestal Virgin - The Roman Empire
- Lori Sutton
- Vestal Virgin - The Roman Empire
- Lou Mulford
- Vestal Virgin - The Roman Empire
- Jackie Mason
- Jew #1 - The Spanish Inquisition
- Phil Leeds
- Chief Monk - The Spanish Inquisition
- Jack Carter
- Rat Vendor - The French Revolution
- Jan Murray
- Nothing Vendor - The French Revolution
- Andréas Voutsinas
- Bearnaise - The French Revolution
- Spike Milligan
- Monsieur Rimbaud - The French Revolution
- John Hillerman
- Rich Man - The French Revolution
- Sydney Lassick
- Applecore Vendor - The French Revolution
- Jonathan Cecil
- Poppinjay - The French Revolution
- Andrew Sachs
- Gerard - The French Revolution
- Fiona Richmond
- Queen - The French Revolution
- Nigel Hawthorne
- Citizen Official - The French Revolution
- Bella Emberg
- Baguette - The French Revolution
- Geoffrey Larder
- Footman - The French Revolution
- George Lane Cooper
- Executioner - The French Revolution
- Stephanie Marrian
- Lady Marie - The French Revolution
- Royce Mills
- Duke D'Honnefleur - The French Revolution
- Mike Cottrell
- Tartuffe - The French Revolution
- Gerald Staddon
- Le Fevre - The French Revolution
- John Ghavan
- Marche - The French Revolution
- Rusty Goffe
- Le Muff - The French Revolution
- Scott Henderson
- Coming Attractions
- Michael Miller
- Coming Attractions
- Royce D. Applegate
- Coming Attractions
- Phil Adams
- Jew
- Bea Arthur
- Dole Office Clerk
- Cindy Ashley
- Swimmer
- Benjie Bancroft
- Roman
- Sean Barry-Weske
- Insolent Flunkey
- Ray Bickel
- Jew
- Russell Brook
- Peasant
- Ava Cadell
- Bit Part
- Jeannie Carlson
- Swimmer
- David Chavez
- Torturer
- Gilbert B. Combs
- Jew
- Dick Durock
- Roman Guard
- Harry Fielder
- Prison Guard
- John Freyer
- Torturer
- Sandra Gray
- Nun / Synchronized Swimmer Dancer (uncredited)
- Sandy Gray
- Swimmer
- Raven Grey Eagle
- Minor Role
- Sandi Gross
- Swimmer
- Rod Haask
- Prehistoric Man
- Edward J. Heim
- Torturer
- Walter Henry
- King Louis XVI's Servant
- Lars Hensen
- Roman
- Fritz Herzog
- Roman Soldier
- Linda Hoxit
- Swimming Nun
- John King
- Dancer
- Sissy King
- Swimmer
- Andy Lambros
- Nuclear Dog Boy
- Stan Mazin
- Dancer
- Denise McKenna
- Nun
- Dennon Rawles
- Torturer
- Carl Reiner
- voice of God speaking to Moses
- Cleo Rocos
- French Girl
- Philip Romano
- Jew
- Peter Ross-Murray
- French Revolutionary
- Dom Salinaro
- Dancer
- Cha Cha Sandoval-McMahon
- Swimmer
- Ted Sprague
- Dancer
- Judy Susman
- Swimmer
- Jack Tyree
- Jew
- Ted White
- Roman Officer
- Albert Whitlock
- Used Chariot Salesman
- Tom Willett
- Roman Senator
- Fred Wood
- Revolutionary Peasant
- Sheb Wooley
- Screaming Peasants
