Jack Webb

Sgt. Joe Friday

Ben Alexander

Officer Frank Smith

Richard Boone

Capt .James E. Hamilton

Ann Robinson

Officer Grace Downey

Stacy Harris

Max Edward Troy

Virginia Gregg

Mrs. Ethel Starkie

Vic Perrin

Adolph Alexander, Asst. Chief Deputy D.A. (as Victor Perrin)

Georgia Ellis

Belle Davitt

James Griffith

Jesse Quinn

Dick Cathcart

Roy Cleaver

Malcolm Atterbury

Lee Reinhard

Willard Sage

Chester Davitt

Olan Soule

Ray Pinker, Forensic Chemist

Dennis Weaver

Police Captain R.A. Lohrman

Monte Masters

Fabian Gerard

Herb Vigran

Mr. Archer

Virginia Christine

Mrs. Caldwell

Guy Hamilton

Walker Scott

Ramsay Williams

Wesley Cannon (as Ramsey Williams)

William Boyett

Grand Jury Bailiff (uncredited)

James Anderson

Art Aragon

Cliff Arquette

Harry Bartell

Arthur Berkeley

Ralph Brooks

Dick Crockett

Jean Dean

Sayre Dearing

Ross Elliott

Herbert Ellis

Mel Ford

Art Gilmore

Harper Goff

James Gonzalez

Robert Griffin

Stuart Hall

Sam Harris

Jack Henderson

Bert Holland

Mauritz Hugo

Gayle Kellogg

Fred Kelsey

Harry Lauter

Patrick Miller

Meg Myles

Robert North

Ken Osborne

Dick Paxton

Jack Perrin

Jack Perry

Ken Peters

John Roy

Ray Saunders

George Sawaya

Hazel Shermet

Leslie Sketchley

Thad Brown (uncredited)

Stephen Soldi

Jack Sterling

Bert Stevens

Hal Taggart

Dub Taylor

Harlan Warde