- Michelle Williams
- Gail Harris
- Christopher Plummer
- J. Paul Getty
- Mark Wahlberg
- Fletcher Chase
- Romain Duris
- Cinquanta
- Timothy Hutton
- Oswald Hinge
- Charlie Plummer
- John Paul Getty III
- Charlie Shotwell
- John Paul Getty III (Age 7)
- Andrew Buchan
- John Paul Getty II
- Marco Leonardi
- Mammoliti
- Giuseppe Bonifati
- Giovanni Iacovoni
- Nicolas Vaporidis
- Il Tamia "Chipmunk"
- Andrea Piedimonte
- Corvo
- Guglielmo Favilla
- Piccolino
- Nicola Di Chio
- Kidnap Van Driver
- Adele Tirante
- Prostitute Maria
- Alessandra Roca
- Prostitue #1
- Francesca Inaudi
- Prostitute #2
- Stacy Martin
- Nancy Getty's Secretary
- Maya Kelly
- Aileen Getty (Age 6)
- Kit Cranston
- Mark Getty (Age 4)
- Ginevra Migliore
- Ariadne Getty (Age 2)
- Francesco Bomenuto
- Rome Hotel Butler
- Clive Wood
- Bullimore
- David Brooks
- Playboy Interviewer
- Cherise Silvestri
- Secretary Getty Oil
- Anna Devlin
- Aileen Getty (Age 15)
- Roy McCrerey
- Attorney Getty Oil
- Stanley Treshansky
- Mark Getty (Age 13)
- Josie Sayers
- Ariadne Getty (Age 11)
- Daniel Gosling
- Telegraph Reporter
- Kim Fenton
- Daily Mail Reporter
- Oliver Ryan
- BBC Reporter
- Ghassan Massoud
- Prince Al-Rashid
- Giampiero Judica
- Sgrò
- Maurizio Lombardi
- Mammoliti's Doctor
- Ridley Scott
- Director
- David Scarpa
- Screenwriter
- Dan Friedkin
- Producer
- Bradley Thomas
- Producer
- Quentin Curtis
- Producer
- Chris Clark
- Producer
- Mark Huffam
- Producer
- Kevin J. Walsh
- Producer
- Dariusz Wolski
- Cinematographer
- Claire Simpson
- Film Editing
- Daniel Pemberton
- Original Music
- Arthur Max
- Production Design
- Cristina Onori
- Supervising Art Direction
- Gianpaolo Rifino
- Art Director
- Saverio Sammali
- Art Director
- Letizia Santucci
- Set Decoration
- Janty Yates
- Costume Design
- Carmen Cuba
- Casting
