Main Characters Narrator 107 main appearances Eliot Ness 106 main appearances Agent Enrico Rossi 97 main appearances Agent Lee Hobson 81 main appearances Agent William Youngfellow 73 main appearances Agent Jack Rossman 57 main appearances Frank Nitti 25 main appearances District Attorney Beecher Asbury 14 main appearances Agent Martin Flaherty 14 main appearances Agent Cam Allison 10 main appearances Agent Lamar Kane 4 main appearances
Recurring Guest Characters Agent William Youngfellow 2 guest appearances Agent Jack Rossman 1 guest appearances District Attorney Beecher Asbury 4 guest appearances Agent Cam Allison 1 guest appearances Agent Lamar Kane 2 guest appearances Police Officer 5 guest appearances Hood 5 guest appearances George 'Bugs' Moran 4 guest appearances Jake 'Greasy Thumb' Guzik 3 guest appearances Dutch Schultz 3 guest appearances Matron 3 guest appearances Hood 3 guest appearances John Carvell 3 guest appearances Frank Diamond 2 guest appearances Three-Fingered Jack White 2 guest appearances Little Charlie Sebastino 2 guest appearances Warden Hubbard 2 guest appearances Diner Patron 2 guest appearances Louis 'Little New York' Campagna 2 guest appearances Sticks 1 guest appearances ⇤ « 1 2 3 4 5 6 7 8 9 10 » ⇥