- Noah Beery Jr. - Hannibal Clay
- Abraham Sofaer - Comancho
- Barry Sullivan - Dan Casement
- Bert Freed - Telford Burris
- Steve Forrest - Johnny Rondo
- Paul Fix - Cochise
- Dehl Berti - Fuentes
- Luke Askew - Johnny Ringo
- Robert DoQui - Corporal Larrabee
- Antony Carbone - Mitch Collins
- Nehemiah Persoff - Homero José
- Richard Bradford - Tulsa Red
- Frank Puglia - Miguel
- Tony Russel - Ricardo
- John Zaremba - Price
- Don Diamond - Miguel
- Richard Farnsworth - Lloyd
- Alejandro Rey - Diego de la Paula
- Gary Busey - Rafe
- Chief Dan George - Chief Morales
- Joe De Santis - Colonel Ruiz
- Harry Lauter - Mobley
- Monte Markham - Dave Redman
- King Moody - Frank Gore
- Bo Svenson - Bennett
- Richard X. Slattery - Captain
- Argentina Brunetti - Duena Lopez
- Don Collier - Sam Butler
- Joanna Moore - Charly Converse
- Elizabeth Allen - Sister Ellie Strong
- John Furlong - Halliday
- Ron Hagerthy - Morgan
- Barbara Hershey - Moonfire
- Leonard Stone - Shoop
- Margarita Cordova - Constanza
- Scott Brady - Walt Fraley
- Robert Lansing - Marshall Virgil Packer
- Charles Durning - Hewitt
- Kathryn Hays - Frances O'Toole
- Joe Maross - Hank Munn
- Frank Silvera - Don Sebastian Montoya
- John Vernon - Sean McLaren
- Kathleen Crowley - Countess Maria Kettenden von München
- Murray MacLeod - Lieutenant Tabor
- Angela Clarke - Sister Luke
- James Gregory - Jake Stoner
- John Davis Chandler - Kid Curry
- Lani O'Grady - Penny Fox
- Mitchell Ryan - Jelks
- Charles Dierkop - Slim
- Albert Salmi - White Horse
- Michael Ansara - Alberto Ruiz
- Donald Moffat - Henry Simmons
- Harry Dean Stanton - Johnny Faro
- Fernando Lamas - El Caudillo
- Jack Lord - Dan Brookes
- Clint Ritchie - Kansas
- Noah Keen - Travers
- John Colicos - Matthew Kendall
- Bonnie Bedelia - Tina Granger
- Howard Morton - Proprietor
- Denny Miller - Kolos
- Bethel Leslie - Annie Simmons
- Brenda Benet - Anita de Santiago y Amistad
- Yaphet Kotto - Sgt. Major Creason
- Martín Garralaga - Francisco
- Anthony Caruso - El Lobo
- Julia Montoya - Senora
- Rodolfo Acosta - Vaquero
- Gregg Palmer - Colonel Bell
- Vaughn Taylor - Asa Simmons
- Robert Pine - Lt. Jason Adams
- Kevin McCarthy - James Forrest
- Bruce Dern - Wade
- Leo Gordon - Lije Driskill
- Gino Conforti - Raul
- Kermit Murdock - Seechrist
- Warren Stevens - Capt. Thomas Dabney
- William Lucking - Gait
- William Conrad - China Pierce
- Alan Oppenheimer - Sweets
- Jim Davis - Robbins
- Harold Gould - Carlisle
- Pamela Dunlap - Trece Burnett
- R. G. Armstrong - Ed Henderson
- Alan Caillou - Sean Hanrahan
- John Kerr - Creed Hallock
- Marianna Hill - Juanita
- Victor Campos - Teniente Garcia
- Walter Brooke - Robert Morris
- Walter Brooke - Carney
- Ed Peck - Captain Slater
- Ned Romero - Carlos Mendoza
- Ned Romero - Rinaldo
- John Quade - Bartender
- BarBara Luna - Conchita
- Tom Nolan - Wilbur
- Valentin de Vargas - Rodrigo
- Christopher Dark - Ramadan
- Christopher Dark - Chato
- Mills Watson - Greer
- Mills Watson - Cable
- Denver Pyle - General Warren
- Jorge Russek - El Coyote
- Jorge Russek - Molinero
- Geraldine Brooks - Fay Leyton
- John Dehner - Gar Burnett
- John Dehner - Captain Surtee
- Ramon Novarro - Padre Guillermo
- William Sylvester - Lafe Croswell
- William Sylvester - Jack Simmons
- Gregory Sierra - Arrigo
- Gregory Walcott - Truescott
- Gregory Walcott - Cap Winslow
- Henry Silva - Santos Castaneda
- Adam Williams - Burton
- Charles Aidman - Paddy O'Bannion
- Alan Vint - Tim Parker
- Robert Loggia - Chio
- Robert Loggia - Grey Wolf
- Helen Kleeb - Mrs. Mulrot
- Dan O'Herlihy - Jake Lanier
- Jack Kelly - Dr. John Henry
- Frank Gorshin - Stinky Flanagan
- Joseph Ruskin - Ainsworth Pardee
- Foster Brooks - Drunk
- Kaz Garas - Lieutenant Allen
- Milton Selzer - Sody Marcum
- Barry Sadler - Robbie McLeish
- Monte Landis - Tailor
- Art Metrano - Bartender
- Albert Paulsen - Eduardo Nervo
- Ricardo Montalban - El Tigre
- Ricardo Montalban - Padre Eduardo Sanchez
- Fabrizio Mioni - Nickanora
- John Milford - Hardicker
- Eddie Little Sky - Alacran
- Dennis Cross - Apache Brave
- Ron Hayes - Orville Kilroy
- Ron Hayes - Stacey Carr
- John Pickard - Sgt. Williams
- John Pickard - Jake Coffin
- Kurt Russell - Dan Rondo
- Eddie Firestone - Paddy Scanlon
- James Gammon - Lafe
- Anna Navarro - Indian Girl
- Pat Renella - Sangre
- Dick Haynes - Sheriff Towers
- Kevin Hagen - Dolph Tanner
- Pepe Hern - Teofilo
- Tom Tully - General Tirrel
- Jack Elam - Macklin
- Ken Mayer - Sergeant Cochrane
- Ken Mayer - One-Eyed Cowboy
- Vincent Van Patten - Culley Broxton
- Jackie Searl - Clerk
- Jackie Searl - Storekeeper
- Jackie Searl - Carter
- Ed Begley - Ben Lynch
- Raymond Guth - Stableman
- Raymond Guth - Luther
- Joe Don Baker - Yuma
- Roberto Contreras - Pedro
- Victor Jory - Mr. Kelly
- Sean McClory - Sandy McIntire
- Anthony James - Harley Deever
- Tom Reese - Judson
- Ralph Meeker - Tracy Conlin
- Ellen Corby - Mrs. Dilts
- Lane Bradford - Roark
- Lane Bradford - Gilcher
- Charles Maxwell - MacAteer
- Charles Maxwell - Sergeant Smith
- Charles Maxwell - Hank
- Walter Barnes - Bartender
- Pat Hingle - Finley Carr
- Jan Shepard - Mavis
- Jan Shepard - Megan Hallock
- Heather Menzies - Beth Roberts
- Robert Clary - Lucien Charot
- Joan Caulfield - Annalee Cannon
- Dub Taylor - Oscar Hipple
- Dub Taylor - Fargo Smith
- Ralph Manza - Gomez
- Priscilla Pointer - Mrs.Colton
- Robert Yuro - Ramon Garcia
- Robert Yuro - Kyle
- Edmond O'Brien - Morgan MacQuarie
- Frank De Kova - Aguirre
- Garry Walberg - O'Fierna
- Garry Walberg - Sgt. Wilson
- Garry Walberg - Bartender
- Dan White - Sheriff Prentiss
- Dan White - Dirt Smith
- Roger C. Carmel - Gen. Jose Casados
- Woodrow Parfrey - Pruitt
- Kathleen Freeman - Maude
- Carlos Romero - Romero
- Carlos Romero - Sargente
- Miriam Colon - Trinidad
- Don Keefer - Telegrapher
- Robert Donner - Sam Pelletier
- Robert Donner - Wilby
- Don Starr - Dan Carter
- Don Starr - Ollicutt
- William Jordan - Pearsall
- Gilbert Roland - Don Domingo Montoya
- Jeff Pomerantz - Tom Lynch
- Pamelyn Ferdin - Jennie Simmons
- Pamelyn Ferdin - Charity
- Rosa Turich - Mamacita
- Geoffrey Lewis - Bum
- Stuart Nisbet - Conlin
- Larry D. Mann - Tobin Boggs
- Myron Healey - Tommy
- Myron Healey - Taylor
- Myron Healey - Maj. Corbett
- Tom Brown - Cap
- Lou Frizzell - Jeff Patterson
- Laurie Mock - Maria De La Pena
- Roy Jenson - Jed Tate
- Roy Jenson - Frank Lynch
- James Almanzar - Mexican Soldier
- Tyler McVey - Col. Shelton
- Tyler McVey - Will Todd
- Morgan Woodward - Billings
- Morgan Woodward - U.S. Marshal Ted Garnett
- Morgan Woodward - Hilliard
- Joaquín Martínez - Innocente
- Joaquín Martínez - Peon
- Joaquín Martínez - Luis
- Joaquín Martínez - Little Cloud
- Malachi Throne - Julio Armendaris
- Malachi Throne - Matar
- Henry Wills - Lt. Ellis
- Henry Wills - Tommy
- Henry Wills - Tommy Sweets
- Henry Wills - Murph
- Henry Wills - Harmon
- Henry Wills - Steve (uncredited)
- Henry Wills - Stagecoach Driver (uncredited)
- Marie Gomez - Pearlita Flores
- David Dortort
Gary Busey interpreta a Rafe en la serie.
Ricardo Montalban interpreta a Padre Eduardo Sanchez en la serie.
Frank Gorshin hace el papel de Stinky Flanagan.
Vaughn Taylor interpreta a Asa Simmons en la serie.
John Furlong interpreta a Halliday en la serie.
R. G. Armstrong interpreta a Ed Henderson en la serie.
Adam Williams interpreta a Burton en la serie.
Nehemiah Persoff interpreta a Homero José en la serie.
Anthony James interpreta a Harley Deever en la serie.
Robert Loggia interpreta a Grey Wolf en la serie.
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