| Episode credited cast: |
 | Danny Bonaduce | - | Narrator |
| Rest of cast listed alphabetically: |
 | Ed Becker | - | Himself - Mafia Insider |
| Virginia Hill | - | Herself (archive footage) |
| Robert Lacey | - | Himself - Author, 'Little Man' |
| Ralph Salerno | - | Himself - Retired NYPD Mob Investigator |
| Bee Sedway | - | Herself - Friend of Bugsy Siegel |
| Sara Lee Stadelman | - | Herself - Widow of Flamingo Architect |
| Lou Wiener Jr. | - | Himself - Bugsy's Former Attorney |
| W.R. Wilkerson III | - | Himself - Author, 'Flamingo' |
| Sidney Zion | - | Himself - Author and Mob Reporter |
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