Underworld U.S.A.

Cliff Robertson

Tolly Devlin

Dolores Dorn

Cuddles

Beatrice Kay

Sandy

Richard Rust

Gus Cottahee

Paul Dubov

Gela

Robert Emhardt

Earl Connors

Larry Gates

John Driscoll

Gerald Milton

Joseph Wilhelm Gunther

David Kent

Young Tolly

Peter Brocco

Vic Farrar

Tina Pine

Woman

Cosmo Sardo

Connors' Associate

Sally Mills

Connie Fowler

Robert P. Lieb

Police Chief William Fowler

Allan Gruener

Smith

Neyle Morrow

Barney

Henry Norell

Dr. Meredith

Bernie Hamilton

Investigator

Jerry Mann

Cashier (uncredited)

Samuel Fuller

Director

Floyd Joyer

Assistant Director

Samuel Fuller

Writer

Samuel Fuller

Producer

Hal Mohr

Director of Photography

Jerome Thoms

Editor

Harry Sukman

Original Music Composer

Robert Peterson

Art Direction

William F. Calvert

Set Decoration

J.S. Westmoreland

Sound

Ben Lane

Makeup Supervisor

Helen Hunt

Hairstylist