Anthony DiCarlo
Frank Costello (8 eps)
Jonathan C. Stewart
Benjamin 'Bugsy' Siegel (8 eps)
Craig Thomas Rivela
Vito Genovese (8 eps)
Michael Kotsohilis
Al Capone (8 eps)
Paolo Rotundo
Johnny Torrio (8 eps)
Christopher Valente
Paul Ricca (8 eps)
Rich Graff
Lucky Luciano (8 eps)
Evan Boymel
Louis 'Lepke' Buchalter (8 eps)
Ian Bell
Meyer Lansky (8 eps)
Gus Zucco
Albert Anastasia (8 eps)
Emmett Skilton
Sam Giancana (8 eps)
Jason Fitch
Tony “Joe” Accardo (8 eps)
Owen Black
Frank Nitti (8 eps)
Dominique Bela
Alice (2 eps)