Agent Melvin Purvis is placed in charge of running down notorious killer Machine Gun Kelly, and sets out to do just that.
| Actor | Role |
|---|---|
 Dale RobertsonMelvin Purvis | Melvin Purvis |
 Harris YulinGeorge 'Machine Gun' Kelly | George 'Machine Gun' Kelly |
 Dick SargentThatcher Covington | Thatcher Covington |
 Margaret Blye'Kate' Katherine Ryan-Kelly | 'Kate' Katherine Ryan-Kelly |
 Matt ClarkCharles 'Charlie' Parlmetter | Charles 'Charlie' Parlmetter |
 David Canary'Gene' Eugene T. Farber | 'Gene' Eugene T. Farber |
 Elliott StreetThomas 'Buckwheat' Longaker | Thomas 'Buckwheat' Longaker |
 John Karlen'Tony' Anthony Redecci | 'Tony' Anthony Redecci |
 Steve KanalySam Cowley | Sam Cowley |
 Woodrow ParfreyNash Covington | Nash Covington |
| JJim Hill'Jim' J. D. Longaker | 'Jim' J. D. Longaker |
 Don MegowanHamburger Stand Man | Hamburger Stand Man |
 Hank RolikeShoe Shine Man | Shoe Shine Man |
 Eddie QuillanHotel Clerk | Hotel Clerk |
 Max KlevenPurvis' Driver | Purvis' Driver |
| BBob PinsonBuckwheat's Pa | Buckwheat's Pa |
| BBill MaddenGas Station Boy | Gas Station Boy |