Robert Lowery

Character: Joe Martin

Anne Gwynne

Character: Jane Jennings

Edward Brophy

Character: Pete Purdy

Marcia Mae Jones

Character: Betty - Fender's Secretary

Douglas Fowley

Character: Frederick P. 'Fred' Fender

Maude Eburne

Character: Grandma

William Forrest

Character: Deputy Fire Chief / Narrator

Steve Pendleton

Character: Murph, the undercover man (as Gaylord Pendleton)

Byron Foulger

Character: Thomas Peyson

Matt McHugh

Character: Hubbell

Lelah Tyler

Character: Mrs. Peyson

Emmett Vogan

Character: Al, Night Watchman

John Maxwell

Character: Detective

Richard David

Character: Junior Peyson

John Forsythe

Character: Race Track Aannouncer (voice, uncredited)