| Elsa Martinelli | ... | Vic Shaw | |
| Cesar Romero | ... | Mike Madigan | |
| Dustin Hoffman | ... | Jason Fister | |
| Gustavo Rojo | ... | Lt. Arco | |
| Fernando Hilbeck | ... | Burke | |
| Riccardo Garrone | ... | Matteo Cirini | |
| Franco Fabrizi | ... | Condon (as Franco Fabrizzi) | |
| Gérard Tichy | ... | J. P. Ogilvie | |
| Jan de Milte | |||
| Umberto Raho | ... | Photographer | |
| Daniele Vargas | |||
| José María Caffarel | |||
| Rina Mascetti | |||
| Ennio Antonelli | ... | Basilio | |
| Pino Polidori | ... | Meli | |
| Fortunato Arena | ... | Partoni | |
| Remo De Angelis | (as Remo di Angeli) | ||
| Luigi Bonos | ... | Lift operator (as Gigi Bonos) | |
| Isabel Hidalgo | |||
| Maria Pilar Porro | |||
| rest of cast listed alphabetically: | |||
| Alfredo Mayo | |||
| Héctor Quiroga | |||
| Jack Palance | ... | Matteo Cirini (voice: English version) (uncredited) | |
| Romano Puppo | ... | Steward (uncredited) | |
Directed by | |||
| Giorgio Gentili | (Italian version) (as Stanley Prager: English version) (as Dan Ash) | ||
Writing credits(in alphabetical order) | ||
| José Luis Bayonas | screenplay (as José Luis de las Bayonas) | |
| José Luis Bayonas | story (as José Luis de las Bayonas) | |
| Giorgio Gentili | writer | |
| Jim Henaghan | screenplay (as James Henaghan) | |
| Jim Henaghan | story (as James Henaghan) | |
| Guido Leoni | Italian dialogue | |
Produced by | |||
| Mitchell Grayson | .... | executive producer | |
| José López Moreno | .... | executive producer (as J. López Moreno) | |
| Sidney W. Pink | .... | producer | |
Original Music by | |||
| Gregorio García Segura | |||
Cinematography by | |||
| Manuel Rojas | |||
Film Editing by | |||
| Bruno Micheli | |||
| Antonio Ramírez de Loaysa | |||
Production Design by | |||
| Lucio Bompani | |||
| Piero Filippone | |||
Costume Design by | |||
| Rosalba Menichelli | |||
Makeup Department | |||
| Dolores Merlo | .... | makeup artist | |
| Mario Van Riel | .... | makeup artist | |
Production Management | |||
| Giorgio Baldi | .... | production supervisor | |
| Ricardo Merino | .... | assistant production manager | |
| Ángel Monís | .... | production manager | |
Second Unit Director or Assistant Director | |||
| José Luis Bayonas | .... | assistant director (as José Luis de las Bayonas) | |
| Renato Moretti | .... | assistant director | |
Music Department | |||
| Gregorio García Segura | .... | orchestrator | |
Other crew | |||
| Paola Salvadori | .... | script supervisor | |
| Jack Palance | .... | voice dubbing: Riccardo Garrone (english language version) (uncredited) | |
| Full cast and crew | Company credits | IMDb Comedy section |
| IMDb Italy section |
Dustin Hoffman's character Jason Fister is sent to Rome to track down the million dollars a deceased gangster named Mike Madigan (Cesar Romero) left behind.Giorgio Gentili's Madigan's Million was shot in 1966 but wasn't released until a couple years later, in 1968.Dustin Hoffman had gotten some name to himself with The Graduate so they brought this to the big screen with much less success.It is Hoffman who saves the show.He steals the show from the moment he stumbles on the screen till the moment he hops off the screen.This is totally and completely a Dustin Hoffman show.There are other actors too who aren't bad at all.There are people such as Elsa Martinelli, Gustavo Rojo, Fernando Hilbeck, Riccardo Garrone and so on.And let's not forget those few minutes in the beginning with Cesar Romero.I recommend this movie solely to Dustin Hoffman fans.Others don't be bothered.