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 Jimmy 1 guest appearances Phil Morrisey 1 guest appearances Wally Legenza 1 guest appearances Benny Hoff 1 guest appearances Barney 'Bugs' Birch 1 guest appearances Joe Kulak 1 guest appearances Johnny Templar 1 guest appearances Smiley Barris 1 guest appearances Ray Quist 1 guest appearances Jeanne Lauder 1 guest appearances Capt. Fuller 1 guest appearances Edwin MacKane 1 guest appearances Desk Sergeant 1 guest appearances Launch Attendant 1 guest appearances Boatman 1 guest appearances Soldier 1 guest appearances Club Patron 1 guest appearances Lab Tech 1 guest appearances Police Officer 1 guest appearances Bellhop 1 guest appearances ⇤ « 1 2 3 4 5 6 7 8 9 10 » ⇥