Clint Eastwood as Joe Kidd

Robert Duvall as Frank Harlan

John Saxon as Luis Chama

Don Stroud as Lamarr Simms

Stella Garcia as Helen Sanchez

James Wainwright as Mingo

Paul Koslo as Roy

Gregory Walcott as Mitchell

Dick Van Patten as Hotel Manager

Lynne Marta as Elma

John Carter as Judge

Pepe Hern as Priest

Joaquín Martínez as Manolo

Chuck Hayward as Eljay

Ron Soble as Ramon

Pepe Callahan as Naco

Clint Ritchie as Calvin

Gil Barreto as Emilio

Ed Deemer as Bartender

Maria Val as Vita

Michael R. Horst as Deputy

Steve Eastin as Rider (uncredited)

Doug Greenough as Local Hire (uncredited)

Archie Harrison as Local Hire (uncredited)

Rick Kahana as Altar Boy (uncredited)

Tony Kahana as Boy (uncredited)

Mark Klinkowsky as Local Hire (uncredited)

Ron Manning as Local Hire (uncredited)

Fred McDougall as Gunman (uncredited)

Steve Miller as Local Hire (uncredited)

Read Morgan as Cowboy (uncredited)

Steve Moriarty as Citizen (uncredited)

John Quijada as Bandito (uncredited)

Neil Summers as Posse (uncredited)

A.L. Ward as Local Hire (uncredited)

Troy Ward as Local Hire (uncredited)