 | Michelle Williams als Gail Harris |
 | Christopher Plummer als Jean Paul Getty |
 | Mark Wahlberg als Fletcher Chase |
 | Romain Duris als Cinquanta |
 | Timothy Hutton als Oswald Hinge |
 | Charlie Plummer als John Paul Getty III |
 | Charlie Shotwell als John Paul Getty III (Age 7) |
 | Andrew Buchan als John Paul Getty II |
 | Marco Leonardi als Saverio Mammoliti |
 | Giuseppe Bonifati als Giovanni Iacovoni |
 | Nicolas Vaporidis als Il Tamia 'Chipmunk' |
 | Andrea Piedimonte als Corvo |
 | Guglielmo Favilla als Piccolino |
 | Adele Tirante als Maria |
 | Stacy Martin als Nancy |
 | Maya Kelly als Aileen Getty (Age 6) |
 | Anna Devlin als Aileen Getty (Age 15) |
 | Kit Cranston als Mark Getty (Age 4) |
| Stanley Treshansky als Mark Getty (Age 13) |
| Ginevra Migliore als Ariadne Getty (Age 2) |
| Josie Sayers als Ariadne Getty (Age 11) |
 | Olivia Grant als Millicent |
 | Charlotte Beckett als Annie |
 | Roy McCrerey als Attorney |
 | Giulio Base als Coroner |
| Nicola Di Chio als Kidnap Van Driver |
 | Alessandra Roca als Prostitue #1 |
 | Francesca Inaudi als Prostitute #2 |
 | Francesco Bomenuto als Rome Hotel Butler |
 | Ghassan Massoud als Arab Sheikh |
 | Clive Wood als Bullimore |
 | Jonathan Aris als Conservator |
 | Oliver Ryan als BBC Reporter |
 | Cherise Silvestri als Secretary Getty Oil |
| Enzo Attanasio als Barn Man |
 | Monica Nappo als Barn Woman |
| Gino Nardella als Villager #1 |
 | Chantal Ughi als Villager #2 |
 | Riccardo De Torrebruna als Carabinieri Captain |
| Ridley Scott | Producer |
| Ridley Scott | Director |
| Dan Friedkin | Producer |
| Claire Simpson | Editor |
| Janty Yates | Costume Design |
| Oliver Tarney | Supervising Sound Editor |
| Letizia Santucci | Set Decoration |
| Chris Clark | Producer |
| Quentin Curtis | Producer |
| Dariusz Wolski | Director of Photography |
| Samy Keilani | Art Direction |
| Kevin J. Walsh | Producer |
| Bradley Thomas | Producer |
| Gilbert Lake | Sound Re-Recording Mixer |
| Andrew Munro | Art Direction |
| Mark Taylor | Sound Re-Recording Mixer |
| Mark Huffam | Producer |
| Cristina Onori | Supervising Art Director |
| Massimo Pauletto | Art Direction |
| Gianpaolo Rifino | Art Direction |
| Arthur Max | Production Design |
| Sleiman Tadros | Makeup Artist |
| Daniel Rogers | Health and Safety |
| Richard Roberts | Set Decoration |
| Carmen Cuba | Casting |
| Marco Valerio Pugini | Co-Producer |
| Teresa Kelly | Co-Producer |
| Aidan Elliott | Co-Producer |
| John Pearson | Book |
| David Scarpa | Writer |
| Franco Maria Salamon | Stunt Coordinator |
| Jdanov Andrei | Stunt Double |
| Lucy Scarfe | Stand In |
| Francesca Cingolani | Unit Production Manager |
| Raymond Kirk | First Assistant Director |
| Roy Bava | First Assistant Director |
| Edoardo Petti | Second Assistant Director |
| Daniele Massaccesi | "A" Camera Operator |
| Alberto Torrecilla | First Assistant "A" Camera |
| Riccardo Pau | Second Assistant "A" Camera |
| Marco Sacerdoti | "B" Camera Operator |
| Francisco Pintore | First Assistant "B" Camera |
| Irene Chiappa | Second Assistant "B" Camera |
| Andrea Arnone | "C" Camera Operator |
| Emiliano Topai | First Assistant "C" Camera |
| Esther Venanzi | Second Assistant "C" Camera |
| Daniel Pemberton | Original Music Composer |
| Annie Penn | Script Supervisor |
| Francesco Zaccaria | Gaffer |
| Massimiliano Dessena | Key Grip |
| Giorgio Pezzotti | Best Boy Grip |
