- Reed Hadley
- Don Diego Vega / Zorro
- Sheila Darcy
- Volita
- William Corson
- Ramon
- Leander De Cordova
- Governor Felipe
- Edmund Cobb
- Gonzalez
- John Merton
- Manuel [Ch. 1-9]
- C. Montague Shaw
- Pablo
- Budd Buster
- Juan
- Carleton Young
- Benito Juarez [ch 1-2, 12]
- Guy D'Ennery
- Don Francisco [Ch. 1]
- Paul Marion
- Kala [Ch. 10-12]
- Joe Molina
- Tarmac
- James Pierce
- Moreno
- Helen Mitchel
- Doña Maria
- Curley Dresden
- Tomás
- Charles King
- Valdez
- Al Taylor
- Rico
- Billy Bletcher
- Don Del Oro
- Buel Bryant
- Renaldo
- Yakima Canutt
- Gold Shipment Trooper
- Jack Carrington
- Lt. Antonio Gomez [Ch. 5]
- Eddie Cherkose
- Pedro - Guitarist / Henchman (uncredited)
- Gordon B. Clarke
- Miguel Torres - Legionnaire [Ch. 2]
- Victor Cox
- Pistolero
- Joe De La Cruz
- Yaqui Who Cuts Bridge Ropes [Ch. 4-5]
- Bert Dillard
- Jaimo
- Frank Ellis
- Soldier [Ch. 11]
- Ralph Faulkner
- Rodriguez - Henchman [Ch. 1]
- Martin Faust
- Mabesa
- James Fawcett
- Jose - Manuel's Guard [Ch. 8]
- Jerry Frank
- Don Del Oro's Throne Guard
- Bud Geary
- Dungeon Thug
- Augie Gomez
- Cave Indian
- Wylie Grant
- Martinez - Henchman [Ch. 1]
- Alan Gregg
- Salvador - Henchman [Chs. 1-3, 9]
- Sheik the Horse
- El Rey - Zorro's Horse
- Reed Howes
- Trooper [Ch. 2]
- Ray Jones
- Legionnaire [Ch. 1]
- Norman Lane
- Ricardo
- Theodore Lorch
- Councilman Carlos
- Bob Mabesa
- Hernandez - Armory Keeper
- Cactus Mack
- Cisco
- Ted Mapes
- Tall Henchman in Armory [Ch. 4]
- Max Marx
- Presidio Guard
- Millard McGowan
- Cave Thug [Ch. 8]
- Joe McGuinn
- Trooper [Ch. 10]
- Clayton Moore
- Fernando
- Charles Murphy
- Pepito - Carriage Driver [Ch. 6]
- William H. O'Brien
- Legionnaire [Ch. 2]
- Jack O'Shea
- Cave Thug [Ch. 8]
- Artie Ortego
- Soldier [Ch. 11]
- George Plues
- Garcia - Water Wagon Driver [Ch. 10-11]
- Barry Regan
- Trooper
- Jason Robards Sr.
- Cantina Proprietor [Ch. 1]
- Ernest Sarracino
- Sebastian [Ch. 1]
- Carl Sepulveda
- Orlando
- Charles Soldani
- Cave Indian
- Ken Terrell
- Martin [Ch. 4] / Cristobal - Dungeon Guard [Ch. 7] (uncredited)
- John Wallace
- Peg-Leg Jailer [Ch. 8]
- Blackjack Ward
- Cave Thug [Ch. 8]
- Robert Wilber
- Hernandez
- Henry Wills
- Legionnaire [Ch. 11]
- Bill Yrigoyen
- Coachman [Ch. 7]
- Joe Yrigoyen
- Pistolero
