Robert Stack

Character: Eliot Ness

Keenan Wynn

Character: Joe Fuselli

Barbara Nichols

Character: Brandy LaFrance

Pat Crowley

Character: Betty Anderson

Bill Williams

Character: Martin Flaherty

Joe Mantell

Character: George Ritchie

Bruce Gordon

Character: Frank Nitti

Neville Brand

Character: Al Capone

Peter Leeds

Character:

Eddie Firestone

Character:

Robert Osterloh

Character:

Paul Dubov

Character:

Abel Fernandez

Character:

Wolfe Barzell

Character: Picco

John Beradino

Character: Johnny Giannini