Jack Webb
Joe Friday

Ben Alexander
Frank Smith

Olan Soule

Vic Perrin

Jack Kruschen

Art Balinger
Capt. Glavas / Capt. Barnard

Harry Bartell
Frank Salazar

Art Gilmore
/ Capt. Harry Didion

Herb Vigran
/ Jocko Harris / Eugene Murray / Pete Eigen / Sam Phillips

Virginia Gregg
(voice) / Marjorie Lewis / Mrs. Doris Roth / Millie (voice) (uncredited) / Iris ...

Natalie Masters
Edith Barson / Katy Stokes / Peggy Herman / Jean Dunbar / Doris Lanpher /

Sam Edwards

Helen Kleeb

Paul Richards
/ George Gramberg

Martin Milner
/ Stephen Banner

Don C. Harvey
/ Capt. Donahoe

William Boyett
/ Larry Thompson / Stanley Bushing

Harlan Warde

Howard Culver

Dennis Moore