Eliot Ness (42 episodes)

Michael Malone (42 episodes)

Al Capone (42 episodes)

Frank Nitti (42 episodes)

George Steelman (42 episodes)

Tony Pagano (42 episodes)

Mae Capone (42 episodes)

Catherine Ness (42 episodes)

George 'Bugs' Moran (42 episodes)

Paul Robbins (25 episodes)

(2 episodes)

(2 episodes)

(1 episode)

(1 episode)

(1 episode)

(1 episode)

(1 episode)

(1 episode)

(1 episode)

(1 episode)

(1 episode)

(1 episode)

(1 episode)

(1 episode)

(1 episode)

(1 episode)

(1 episode)

(1 episode)

(1 episode)

Special Prosecutor Thomas Dewey (1 episode)

Rocko (1 episode)

Prosik (1 episode)

Director of Photography (1 episode)

Director (3 episodes)

Director (2 episodes)

Director (2 episodes)

Director (1 episode)

Director (1 episode)

Original Music Composer (42 episodes)

Writer (1 episode)