| Clint Eastwood | .... | Harry Callahan |
| Hal Holbrook | .... | Lt. Briggs |
| Mitchell Ryan | .... | McCoy |
| David Soul | .... | Davis |
| Tim Matheson | .... | Sweet |
| Kip Niven | .... | Astrachan |
| Robert Urich | .... | Grimes |
| Felton Perry | .... | Early Smith |
| Maurice Argent | .... | Nat Weinstein |
| Margaret Avery | .... | Prostitute |
| Richard Devon | .... | Ricca |
| Tony Giorgio | .... | Palancio |
| Jack Kosslyn | .... | Walter |
| Bob March | .... | Estabrook |
| Bob McClurg | .... | Cab Driver |
| John Mitchum | .... | DiGiorgio |
| Russ Moro | .... | Ricca's Driver |
| Clifford A. Pellow | .... | Guzman |
| Albert Popwell | .... | Pimp |
| Christine White | .... | Carol McCoy |
| Adele Yoshioka | .... | Sunny |
| Clarence 'Buzz' Anderson | .... | Reporter (uncredited) |
| Susheela Asregadoo | .... | Girl by Mailbox (uncredited) |
| Nina B. Blake | .... | Hotel Patron (uncredited) |
| Kenneth Boyd | .... | Black Dude (uncredited) |
| John Bracci | .... | Hijacker (uncredited) |
| Marcia Brandwynne | .... | Reporter (uncredited) |
| Christopher Brooks | .... | Demonstrator (uncredited) |
| Art Brown | .... | Himself (uncredited) |
| Jeff Carter | .... | Range Master (uncredited) |
| Willie Carter | .... | Black Dude (uncredited) |
| Al Cingolani | .... | Man by Pool (uncredited) |
| Reuben Collins | .... | Reporter (uncredited) |
| Cab Covay | .... | Tall Thin Man (uncredited) |
| Paul D'Amato | .... | Store Crook (uncredited) |
| Michael L. Davis | .... | Ricca's Bodyguard (uncredited) |
| Brenda Dennis | .... | Stewardess (uncredited) |
| Cash Earley | .... | Stewardess (uncredited) |
| Aaron Edwards | .... | Reporter (uncredited) |
| Drew Eshelman | .... | Man at Mailbox (uncredited) |
| Debra A. Estok | .... | Nude Girl (uncredited) |
| Robert Feero | .... | Store Crook (uncredited) |
| Peter Fitzsimmons | .... | Black Man (uncredited) |
| Ray K. Goman | .... | Cop (uncredited) |
| Joseph Gostanian | .... | Hijacker (uncredited) |
| Wayne Grace | .... | Palancio's Driver (uncredited) |
| J. Peter Hanson | .... | Airline Executive (uncredited) |
| Lisa Herman | .... | Brunette Girl (uncredited) |
| Barbara Herring | .... | Blonde Girl (uncredited) |
| Will Hutchins | .... | Stakeout Cop (uncredited) |
| Jay Jacobus | .... | Airline Executive (uncredited) |
| George R. Kalange | .... | Engineer (uncredited) |
| Gwyn Karon | .... | Reporter (uncredited) |
| Craig Kelly | .... | Airport counterman (uncredited) |
| Edgy Lee | .... | Reporter (uncredited) |
| John Lester | .... | Reporter (uncredited) |
| Lucy Lowry | .... | Stewardess (uncredited) |
| Bruce Mackey | .... | Demonstrator (uncredited) |
| Ron Magers | .... | Reporter (uncredited) |
| Angela May | .... | Stewardess (uncredited) |
| Linda McClure | .... | Girl by Pool (uncredited) |
| Ricci McGee | .... | Black Dude (uncredited) |
| Terence McGovern | .... | Demonstrator (uncredited) |
| Janet McGrath | .... | Girl by Pool (uncredited) |
| Don Michaelian | .... | Man by Pool (uncredited) |
| Joe Miksak | .... | Avery (uncredited) |
| Lynn Mortensen | .... | McCoy Child (uncredited) |
| Niels Mortensen | .... | McCoy Child (uncredited) |
| Bruce Neckels | .... | Controller (uncredited) |
| Eugene A. Nelson | .... | Reporter (uncredited) |
| Ben Niems | .... | Demonstrator (uncredited) |
| Tom O'Neill | .... | Man by Pool (uncredited) |
| Rudy Ortega | .... | Demonstrator (uncredited) |
| Tony Piazza | .... | Police Cadet (uncredited) |
| Charles Raino | .... | Demonstrator (uncredited) |
| George Reading | .... | Reporter (uncredited) |
| Jack Rosenblaum | .... | Reporter (uncredited) |
| Ray Saunders | .... | Doctor Infirmary (uncredited) |
| Jack Schmidt | .... | Airline Executive (uncredited) |
| Robert E. Simpson | .... | Nude Boy (uncredited) |
| Karna Small | .... | Reporter (uncredited) |
| Melvina Smedley | .... | Woman in Discount Store (uncredited) |
| Windrim Smith | .... | Demonstrator (uncredited) |
| Suzanne Somers | .... | Pool Girl (uncredited) |
| Owen Spann | .... | Reporter (uncredited) |
| William Swan | .... | Doorman (uncredited) |
| Steve Treacy | .... | Police Photographer (uncredited) |
| Robert Trebor | .... | Reporter (uncredited) |
| Ed Vasgersian | .... | Casale (uncredited) |
| Conni Venturi | .... | Girl by Pool (uncredited) |
| John Allen Vick | .... | Demonstrator (uncredited) |
| Robert V. R. Ware | .... | Co-Pilot (uncredited) |
| Carl Weathers | .... | Demonstrator (uncredited) |
| Johnny Weissmuller Jr. | .... | Palancio's Hitter (uncredited) |
| Joseph Whipp | .... | Palancio's Hitter (uncredited) |
| William L. Williams | .... | Hotel Patron (uncredited) |
| Phil Wilson | .... | Reporter (uncredited) |
| Jeff Wynne | .... | McCoy Child (uncredited) |