An electric shock enables Sach to predict numbers, so the Bowery Boys are off to Las Vegas to win enough money at the roulette wheels to let their landlady buy an apartment building. Witnessing his winning streak, some gangsters decide to move in and find out his "system" for beating the odds.
| Actor | Role |
|---|---|
 Leo GorceyTerence Aloysius 'Slip' Mahoney | Terence Aloysius 'Slip' Mahoney |
 Huntz HallHorace Debussy 'Sach' Jones | Horace Debussy 'Sach' Jones |
 Mary CastleCarol LaRue | Carol LaRue |
 Mort MillsLead Gangster | Lead Gangster |
 David GorceyChuck, a Bowery Boy | Chuck, a Bowery Boy |
 Jimmy MurphyMyron, a Bowery Boy | Myron, a Bowery Boy |
 Jack RiceDesk Clerk/Dream Judge/Dream Warden | Desk Clerk/Dream Judge/Dream Warden |
| NNicky BlairHenchman Sam | Henchman Sam |
 Don HaggertyHenchman Tony Murlock | Henchman Tony Murlock |
| DDoris KemperKate Kelly | Kate Kelly |
| BBob HopkinsTV Show Host | TV Show Host |
 John BleiferJoe Crumm | Joe Crumm |
 Frank J. ScannellThe Croupier | The Croupier |
 Joey RayThe Casino Manager | The Casino Manager |
 Terry FrostDetective Lt. Flynn | Detective Lt. Flynn |
| DDon MarloweCop | Cop |
| DDick FooteCop | Cop |
 Frank HagneyDream Jail Guard | Dream Jail Guard |