Harry Morgan
Officer Bill Gannon

Jack Webb
Sergeant Joe Friday

Don Ross
Cameraman / Sgt. Wayne Wolfer / Off. Carl Freeman / Sgt. Dean Bergman / Hotel De...

Art Balinger
Capt. Hugh Brown / Capt. Lou Richey / Capt. McTighe / Dep. Chief Simon / Lt. Jos...

Alfred Shelly
Sgt. Al Vietti / Detective Larson (uncredited) / Court Clerk (uncredited) / Sgt....

Virginia Gregg
Mrs. Jean Hardy / Mrs. Francine Graham / Dead Drunk Wife (uncredited) / Dallas A...

John Stephenson
Narrator (voice) (uncredited)

Len Wayland
Capt. Ken Green / Off. Earl Malone / Captain Nelson / Sgt. Al Maxwell / Jack Cou...

Herb Vigran
Desk Clerk / Al Sousa / John Hagen / Pete Gulka / Paul Woods / Mr. Ferguson / Er...

Art Gilmore
Capt. Lambert / Capt. Harry Nelson / Lt. Moore / Capt. Larry Walton / Capt. Mert...

Stacy Harris
Clifford Ray Owens alias Barney Regal / Frank Baker / Dr. Manning / Walter Kinne...

Marshall Reed
Lt. Phil Johnson / Officer Whitney / Fred Deemer / Sgt. Hughes / Sgt. Norman Biv...

Robert Patten
Sgt. Taylor Searcy / Officer Young / Off. Louis J. Sale / Sgt. Jack Williams / S...

Anthony Eisley
Lt. Chris Drucker / Harvey Forrester / Thomas Dutcher / Fred Wayman

Howard Culver
Dr. Larry Fields / Matt Levecque / Sam Enquist / Pete Stuart

Natalie Masters
Landlady / Mrs. Ridges / Housewife

Elaine Devry
Irene Gorman / Patricia Wingate / Maggie Hinton

Eve Brent
Sgt. Connie Speck / Mrs. Carver / Mrs. Fuller

Bobby Troup
Harry Mahan / Richard Clinger / Claude Stroup

Virginia Vincent
Sally Fisher / Shirley Aldrich / Edie Augburn