Robert Duvall
Cabbie Weissberg
Steve McQueen
Lt. Frank Bullitt
Robert Vaughn
Walter Chalmers
Jacqueline Bisset
Cathy
Don Gordon
Lt. Delgetti
Simon Oakland
Captain Sam Bennett
Norman Fell
Captain Baker
Georg Stanford Brown
Dr. Willard
Justin Tarr
Eddy
Carl Reindel
Detective Stanton
Felice Orlandi
Albert E. Renick
Vic Tayback
Pete Ross
Bill Hickman
Phil
Ed Peck
Westcott
Pat Renella
Johnny Ross
Robert Lipton
1st Aide
John Aprea
Killer
Al Checco
Desk Clerk
Robert Cleaves
Uniformed Courtesy Officer (uncredited)