Mark Stevens

as Officer Rocky Barnes

Edmond O'Brien

as Officer Dan Purvis

Gale Storm

as Katharine 'Kate' Mallory

Donald Buka

as Ritchie Garris

Gale Robbins

as Terry Romaine

Anthony Ross

as Police Lt. Masterson

Roland Winters

as Leo Cusick

Tito Vuolo

as Romano

Grazia Narciso

as Mrs. Romano

Madge Blake

as Mrs. Mallory

Lora Lee Michel

as Kathy Blake

Jack Del Rio

as Louis Franissi

Philip Van Zandt

as Joe Quist

Cliff Bailey

as Police Sgt. Bailey

Tony Barr

as Harry Yost

Peter Mamakos

as 'Cootie' Adams

Ric Roman

as Rod Peters (as Earl Breitbard)

Wheaton Chambers

as Building Superintendent Blake

Frances Morris

as Mrs. Blake - Superintendent's Wife

James Brown

as Officer Haynes (uncredited)

Billy Gray

as Peter J. 'Petey' Conklin (uncredited)

Brick Sullivan

as Policeman (uncredited)

Tony Taylor

as Thurlow Conklin (uncredited)

Guy Way

as Reporter (uncredited)