Rock Hudson as John Wesley Hardin

Julie Adams as Rosie McCoy (as Julia Adams)

Mary Castle as Jane Brown

John McIntire as J.G. Hardin / John Clements

Hugh O'Brian as Ike Hanley

Dennis Weaver as Jim Clements

Forrest Lewis as Zeke Jenkins

Lee Van Cleef as Dirk Hanley

Tom Fadden as Chick Noonan - Undertaker

Race Gentry as Young John Hardin

Richard Garland as Joe Clements

Glenn Strange as Ben Hanley

William Pullen as Joe Hardin