- Leo Gordon - Bull Nickerson
- Maudie Prickett - Laura Tate
- Diane McBain - Lilac
- Robert J. Wilke - Marshal Tom Haddon
- James Drury - Clay
- Lee Van Cleef - Deputy Clyde Wilson
- Paul Fix - Pop Marraday
- Eugene Iglesias - Blanket - Pony Raiser
- Barbara Lang - Julie Tate
- John Hoyt - Judge Loren Grant
- Jack Buetel - Ryder (as Jack Beutel)
- Nan Peterson - Annette
- Nan Peterson - Nancy Porter
- John Clarke - Cowboy
- Bek Nelson - Dru Lemp
- Marshall Reed - Jake
- Don 'Red' Barry - Jim Gaylord
- Don 'Red' Barry - Dusty McCade
- Don 'Red' Barry - Jess Schaeffer
- Don 'Red' Barry - Shorty - Assassin
- Herb Vigran - Walt Perkins
- Chuck Hicks - Bouncer #2
- Harry Harvey - Dr. Wilson
- Raymond Mayo - George
- Jack Elam - Herm Forrest
- Emory Parnell - Hank the Bartender
- Emory Parnell - Hank
- Dick Wessel - Jed Thomas
- Frank Hagney - Gang Member (uncredited)
- Randy Stuart - Rose
- Ted de Corsia - Barrett - Assassin Leader
- Ted de Corsia - Jess Crowthers
- Dub Taylor - Chef's Assistant (uncredited)
- Fred Graham - Bartender (uncredited)
- Fred Graham - Hart
- Philip Ahn - Wong
- Paul Brinegar - George the Stage Line Clerk
- Frank Albertson - Clint Porter
- Frank Albertson - Henry Bildy
- Hal Taggart - Townsman (uncredited)
- Hal Taggart - Telegrapher (uncredited)
- Willis Bouchey - Jabez Bentham
- Lane Bradford - Roy Blaine
- Joe Dominguez - Postal Clerk (uncredited)
- Bob Steele - Telegraph Operator (uncredited)
- Tom McKee - Joe Haslip
- Dan Sheridan - Clegg Willis
- Lon Chaney Jr. - Jess Bridges
- Peter Breck - Hale Connors
- Anthony George - Larry Bennett
- Sol Gorss - Henchman (uncredited)
- John Doucette - Ira Young
- John Doucette - Dick Sellers
- Frank Overton - Brad Turner
- Pernell Roberts - Fent Harley
- Jean Allison - Beth Hunter
- Emerson Treacy - Blinker
- Dick Rich - Arch Devereaux
- Dick Rich - Deputy Joe Perell
- Dick Rich - Matt Hodges
- John Hubbard - Jake Biddle
- John Hubbard - Candy Blaine / Reverend Thomas
- John Hubbard - Sy
- Tommy Rettig - Dean Bailey
- Richard Evans - Pete Goff
- Jay Novello - Frank Slater
- Rita Lynn - Lily Keats Anderson
- Jean Willes - Kate Wilson
- Jean Willes - Annie Keller
- Gerald Mohr - The Thimblerigger
- DeForest Kelley - Sam White
- Richard Reeves - Joe
- Richard Reeves - Marty Brattle
- Richard Reeves - Ed Shafter
- J. Pat O'Malley - Owen Muldoon
- J. Pat O'Malley - Jim Phelan
- Kevin Hagen - Kulp
- Byron Foulger - Harry Dorn
- Lovyss Bradley - Servant (uncredited)
- Alfred Shelly - Ben Lang
- Michael Forest - Chief Little Wolf
- Adam Williams - Burley Keller
- Fred Sherman - Shorty (uncredited)
- Fred Sherman - Bill
- Fred Sherman - Storekeeper (uncredited)
- Peggy McCay - Cassie Nickerson
- Tom London - Pete
- Don C. Harvey - Harry Banks
- Lee Patrick - Bess Harper
- Lee Patrick - Mary Young
- Jack Hogan - Lester Jutes
- Damian O'Flynn - Sutter
- Tom Fadden - Livery Operator Cartwright
- Roy Roberts - John Kemper
- Jack Mower - Stage Passenger (uncredited)
- Jack Mower - Councilman (uncredited)
- Arch Johnson - Jason McQuade
- Arch Johnson - Andrew Lord
- Luana Anders - Ellie Phelan
- Joseph Gallison - Lee Darragh
- Joseph Gallison - Roy Barns
- Kenneth Tobey - Tom Bishop
- Kenneth Tobey - Duncan Clooney
- Richard Bakalyan - Eggers - Bank Robber
- Grady Sutton - Ben Toomey
- Grady Sutton - Stiles
- Dabbs Greer - Les Courtney
- Russ Conway - Herm Villiers
- Walter Reed - James Chase
- Shirley Knight - Tendis Weston
- Ray Teal - Judge Leonard Whitehall
- Chubby Johnson - Cactus Gates
- Robert F. Simon - Pa Beason
- Norman Alden - Charley - Townsman
- Joel Grey - Owny O'Reilly
- Roberta Shore - Millie Johnson
- Kent Smith - Kent Smith
- John Kellogg - Bern Lochard
- John Dehner - Ben Wyatt
- George Dunn - Ed Love
- Robert "Buzz" Henry - 1st Bodeen Brother
- L.Q. Jones - Ollie Earnshaw
- Frank J. Scannell - Saul
- Dorothy Konrad - Mrs. Bangle
- Dorothy Konrad - Mrs. Fields
- Arthur Tovey - Barfly (uncredited)
- Henry Brandon - Joshua Haney
- Robert Clarke - Captain Graves
- Herbert Rudley - Clint Baker
- Lester Dorr - Hotel Clerk (uncredited)
- Lester Dorr - Charlie (uncredited)
- Lester Dorr - Charlie the Hotel Laramie Desk Clerk (uncredited)
- Percy Helton - Oren - Murder Witness
- Brad Weston - Jack Edwards
- Fred Stromsoe - Trooper (uncredited)
- Fred Stromsoe - Townsman (uncredited)
- Keith Richards - Casey Cormack
- Larry J. Blake - Chuck Slade
- Larry J. Blake - Jess Brubaker (voice) (uncredited)
- Allen Case - Larry DeLong
- William T. Orr
Robert J. Wilke interpreta a Marshal Tom Haddon en la serie.
Ted de Corsia hace el papel de Jess Crowthers.
Adam Williams interpreta a Burley Keller en la serie.
Sol Gorss hace el papel de Henchman (uncredited).
DeForest Kelley hace el papel de Sam White.
Lon Chaney Jr. interpreta a Jess Bridges en la serie.
Lee Van Cleef interpreta a Deputy Clyde Wilson en la serie.
John Russell hace el papel de Marshal Dan Troop.
Peter Brown hace el papel de Deputy Johnny McKay.
Peggie Castle hace el papel de Lily Merrill.
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