Harry Morgan
Officer Bill Gannon

Jack Webb
Sergeant Joe Friday

Don Ross
John Bingham / Cameraman / Off. Carl Freeman / Glen / Don Hale / Eugene Dickson ...

Art Balinger
Capt. Hugh Brown / Capt. Lou Richey / Capt. McTighe / Capt. Lambert / Lt. Joseph...

Alfred Shelly
Sgt. Al Vietti / Detective / Sgt. Hank Seret / Jack Swan / Carl Freeman / Cadill...

Virginia Gregg
Bonnie Bates / Mrs. Smith / Dead Drunk Wife (uncredited) / Lisa Ruby / Agnes Eme...

John Stephenson
Narrator (voice) (uncredited)

Len Wayland
Capt. Morris / Captain Nelson / Walt Aldrich / Capt. Ken Green / Off. Dave Dorma...

Herb Vigran
Desk Clerk / Al Sousa / Paul Woods / Erv Fowler / John Hagen / Mr. Ferguson / Pe...

Art Gilmore
Capt. Lambert / Lt. Moore / Capt. Larry Walton / Capt. Merton Howe / Capt. Harry...

Stacy Harris
Walter Kinnett / Dan Mungol / Dr. Manning / Frank Baker / Clifford Ray Owens ali...

Marshall Reed
Sgt. Norman Bivins / Sgt. Hughes / Lt. Phil Johnson / Fred Deemer / Officer Whit...

Robert Patten
Sgt. Jack Williams / Sgt. Taylor Searcy / Sgt. Joe Gunn / Officer Young / Off. L...

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

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

Natalie Masters
Housewife / Landlady / Mrs. Ridges

Elaine Devry
Irene Gorman / Patricia Wingate / Maggie Hinton

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

Bobby Troup
Claude Stroup / Harry Mahan / Richard Clinger

Virginia Vincent
Shirley Aldrich / Edie Augburn / Sally Fisher