- George D. Wallace - Plank
- Edd Byrnes - Benji Danton
- Robert Bray - Duke Rhein
- Rod Taylor - Clancy
- Jack Pepper - Whiskey
- Madlyn Rhue - Ellen Lassiter
- Evelyn Ankers - Robbie James
- Adelle August - Jeremy Barnes
- Grant Withers - Matt Ellis
- Steve Brodie - Buck Brown
- Ann Robinson - Joan Carter
- Stacy Keach, Sr. - Sergeant O'Bannion
- James Burke - Buckshot
- Charlie Hall - Kevin
- George Kennedy - Lee Nelson
- Raymond Hatton - Mousey
- Adele Mara - Sarita
- Edward Andrews - Duncan
- Onslow Stevens - Judge Dana Culver
- Joan Weldon - Nellie Merritt
- Grady Sutton - Photographer
- L.Q. Jones - Smitty Smith
- Ellen Corby - Hortense Durango
- Kevin Hagen - Joseph Moran
- James Seay - Duke Tavener
- Angie Dickinson - Jeannie
- Guinn "Big Boy" Williams - Prairie Dog
- Frank Albertson - Johnny Kent
- Ellen Burstyn - Emmy Mae
- Patrick McVey - Marshal Bailey
- Robert McQueeney - Captain Duquesne
- Adam Williams - Jeb Quinn
- Joanna Barnes - Alice Claney
- Gil Perkins - Ranch Hand
- Andrew Duggan - Mark Kendall
- Jack Elam - Calhoun Durango
- Myron Healey - Carl Thompson
- Joseph Gallison - Drifter
- Tom Conway - George Willis
- Don 'Red' Barry - Shorty Jones
- John Doucette - Sgt. Cap Daniels
- John Doucette - Bill Jenkins
- Dennis Hopper - Utah Kid
- Dub Taylor - Hoyt
- Addison Richards - Col. Danial H. Forrest
- James Garner - Lt. Brad Forsythe
- Julian Rivero - Padre Juan
- H.M. Wynant - Ortega
- Peter Brown - Jed Wayne
- Ray Teal - McCanles
- Ray Teal - Maj. Heffler (uncredited)
- Martín Garralaga - Mr. Delgado
- Doris Dowling - Cora Culver
- Michael Landon - Trooper (uncredited)
- Eugene Iglesias - Alfredo
- Sally Kellerman - Lottie Durango
- Sue George - Kat Rafferty
- Terry Frost - Sgt. Short
- Dawn Wells - Sarah Claypool
- Dorothea Lord - Jen Claypool
- Harry Holcombe - Major Prewitt
- Herbert Lytton - Doctor Taylor
- Roy Roberts - Sen. Matson
- Marshall Reed - Bailiff (uncredited)
- Marshall Reed - Ab Carter
- Pat Woodell - Gail Evans
- Peter Coe - Perado
- Jeffrey Silver - Stew Davis
- Rush Williams - Foster
- David Alpert - Wilfred Barnes
- Billy Chapin - Tommy Scott
- Tom Monroe - Floyd
- Robert Carson - Sen. Cleaver
- Robert Carson - Mr. Harrison (uncredited)
- Ray Montgomery - Morton Scott
- Michael Dante - Lt. Dowd
- Michael Dante - Whitey
- Michael Dante - Billy Bob
- Edwin Rand - Virgil
- Steve Conte - Acuna
- Lisa Montell - Rosa
- Edward Colmans - Carlos
- Forbes Murray - Neffi Morton (uncredited)
- Forbes Murray - Senator (uncredited)
- John Harmon - Miller (uncredited)
- John Harmon - Jake (uncredited)
- Barbara Lawrence - Lola McQuilan
- R. G. Armstrong - Nathanael Grimm
- Harry Harvey - Wilbur Crane
- Harry Harvey - Mayor Robert Ellison (uncredited)
- Harry Harvey - Tom Lovelace
- Harry Harvey - Marshal (uncredited)
- Harry Harvey - Opie Wade
- Harry Harvey - Mayor Squires (uncredited)
- Robert J. Wilke - Jed Begert
- Robert J. Wilke - Carl Banner
- Robert J. Wilke - Bob Manson
- Robert J. Wilke - Kelso Prather
- Robert J. Wilke - Ben Creed
- Nancy Kulp - Waitress (uncredited)
- Nancy Kulp - Waitress
- Walter Reed - Price Edwards
- Walter Reed - Ray Landers
- Lorne Greene - Colonel Bell
- John Parrish - Doctor (uncredited)
- Paul Sorensen - Jud Lawrence
- Frank Hagney - Townsman (uncredited)
- Ray Bennett - Banker (uncredited)
- Frank Jenks - Gus Bolin (uncredited)
- Emory Parnell - Luther Gannon
- Emory Parnell - Henry Sawyer
- Alan Hale Jr. - Les Bridgeman
- Fred Graham - Ed Grimes (uncredited)
- Fred Graham - Curly Watts (uncredited)
- Russell Thorson - Sheriff Hardin
- Sam Flint - Williams (uncredited)
- Sam Flint - Reverend (uncredited)
- Sam Flint - Banker (uncredited)
- Sam Flint - Roberts
- Sam Flint - Senator (uncredited)
- Louis Quinn - Townsman (uncredited)
- Louis Quinn - First Hotel Clerk (uncredited)
- Dale Van Sickel - Posse Member (uncredited)
- Dayton Lummis - Frank Collins
- Richard Evans - Gilby Collins
- Frank De Kova - Dull Knife
- Frank De Kova - Spotted Bull
- Frank De Kova - Sitting Bull
- Cyril Delevanti - Doctor (uncredited)
- Joe Dominguez - The Mayor
- Michael Forest - Capt. Robert Holman
- Michael Forest - Yellow Lance
- Michael Forest - Powell
- Leo Gordon - Greg Kirby
- Leo Gordon - Dan Gibson
- Leo Gordon - George MacDonald
- Leo Gordon - Lou Santell / McCarthy
- Douglas Fowley - Pritchard
- Julie Adams - Irene Travers
- Walter Brooke - Edward DeVier
- Dick Cherney - Wedding Guest (uncredited)
- Fred Sherman - Graham
- Jack Gargan - Clerk (uncredited)
- Terry Wilson - 1st Robber (uncredited)
- Chuck Hicks - Townsman (uncredited)
- Chuck Hicks - Barfly (uncredited)
- Chuck Hicks - Train Passenger (uncredited)
- Chuck Hicks - Young Man
- Chuck Hicks - Bar Patron (uncredited)
- Chuck Hicks - Riverboat Passenger (uncredited)
- Chuck Hicks - Circus Patron (uncredited)
- Andrea King - Julie Montaine
- Anne Whitfield - Johnny Dembro
- Anne Whitfield - Nita
- Denver Pyle - Cyrus Burton
- Denver Pyle - John Hanson
- Stafford Repp - Cleave Hammer
- Gilman Rankin - Ringo
- Gilman Rankin - Price
- John Alderson - Beef Simpkins
- Sherwood Price - Jimmy Dugan
- Sherwood Price - Hardy Russell
- Frank McGrath - John Pike
- Richard Reeves - Cliff Bartow
- Richard Reeves - Guard
- Richard Reeves - Jingles Clark
- Richard Reeves - Hendricks
- Richard Reeves - Cooper
- Dick Rich - Starbuck
- Dick Rich - Ranch Hand (uncredited)
- Sol Gorss - Saloon Brawler (uncredited)
- Sol Gorss - Casey
- Robert Foulk - Garth
- Olive Sturgess - Kathy Donovan
- Tom McKee - Sheriff Pickering
- Tom McKee - Sgt. John Horne
- Tom McKee - Coke Adams
- Claude Akins - Sheriff Bob Walters
- Dean Fredericks - Chief Yellow Knife
- Dean Fredericks - Little Chief
- Dean Fredericks - Char
- George J. Lewis - Sleeping Bear
- Jack Hogan - Garson
- Mario Siletti - Pepe
- Whitney Blake - Beth Tobin
- Whitney Blake - Lilli Bridgeman
- Paul E. Burns - Marty
- John Dehner - Nagel
- James Coburn - Kell
- Gerald Mohr - Elmer Bostrum
- Gerald Mohr - Pat Keogh
- Bill Cord - Wes Lassiter
- Richard S. Hornbeck - Lonnie Nelson
- Dan Blocker - Deputy Sam
- Yale Summers - Lieutenant Jackson
- Robert B. Williams - Clem Peters
- Zon Murray - Red (uncredited)
- Jean Willes - Meg Stevens
- George Gaynes - Rod Delaplane
- Lee Van Cleef - Harry Bittercreek Bartender
- Lee Van Cleef - Braden
- Van Williams - Ray Masters
- Fred Stromsoe - Townsman (uncredited)
- Fred Stromsoe - Cowhand (uncredited)
- Margaret Hayes - Iris Danner
- Gary Vinson - Johnny Benson
- Gary Vinson - Sandy
- Donnelly Rhodes - Whoopie
- Oliver McGowan - Ike Johnson
- Oliver McGowan - Jed Belden
- Donald May - Fred Baker / Randy Pierce
- Dan Riss - Jeff Pierce
- Abel Fernandez - Abel - Cowhand (uncredited)
- Herschel Graham - Courtroom Spectator (uncredited)
- Marjorie Bennett - Mrs. Smallwood (uncredited)
- William Challee - Trooper (uncredited)
- Jack Mower - Wagon Train Member (uncredited)
- Fred Essler - Carl Turner
- Harold J. Stone - Perez
- Harold J. Stone - Rafe Larkin
- Willis Bouchey - Ralph Tobin
- Frank Ferguson - Judge Lloyd Pomeroy
- Robert Hyatt - Joel Weeks
- Mauritz Hugo - Sam Mason
- Joan O'Brien - Selma Dawson
- Tom Kennedy - Townsman / Barfly (uncredited)
- Nick Dimitri - Grimm's Man (uncredited)
- Guy Wilkerson - Bartender (uncredited)
- Guy Wilkerson - The Preacher (uncredited)
- Lester Dorr - Hotel Clerk (uncredited)
- John Cliff - Turner
- John Cliff - Walt Hawker
- John Cliff - Lafe Dawson
- John Daheim - Pike
- William Reynolds - Johnny Tremayne
- Tom London - Old-Timer (uncredited)
- Lawrence Dobkin - Lt Gen Phillip H. Sheridan
- Keith Richards - Crazy Horse
- Tom Fadden - Sergeant Hogan
- Susan Seaforth Hayes - Carol Dana
- Bill Zuckert - Ed Parker
- Harvey Stephens - Dr. Clark Dana
- Paul Brinegar - Slim Mantell
- Bob Steele - Dugan
- Roy Huggins
- William T. Orr
Robert J. Wilke hace el papel de Carl Banner.
R. G. Armstrong interpreta a Nathanael Grimm en la serie.
Adam Williams interpreta a Jeb Quinn en la serie.
Patrick McVey hace el papel de Marshal Bailey.
Sol Gorss interpreta a Saloon Brawler (uncredited) en la serie.
Angie Dickinson interpreta a Jeannie en la serie.
Claude Akins hace el papel de Sheriff Bob Walters.
Dennis Hopper interpreta a Utah Kid en la serie.
Robert Foulk hace el papel de Garth.
Lee Van Cleef interpreta a Harry Bittercreek Bartender en la serie.
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