 Raúl JuliáAristotle Onassis | Aristotle Onassis |
 Jane SeymourMaria Callas | Maria Callas |
 Anthony QuinnSocrates Onassis | Socrates Onassis |
 Francesca AnnisJacqueline Kennedy | Jacqueline Kennedy |
 Lorenzo QuinnAlexander Onassis | Alexander Onassis |
 Elias KoteasYoung Aristotle Onassis | Young Aristotle Onassis |
 Beatie EdneyTina | Tina |
 Anthony ZerbeLivanos | Livanos |
 John KapelosCostas Gratsos | Costas Gratsos |
 Richard ChavesTurkish Officer | Turkish Officer |
 Simón AndreuExamining Officer | Examining Officer |
 Silvia TortosaClaudia Muzio | Claudia Muzio |
 Geoffrey HutchingsMeneghini | Meneghini |
 Dimitra ArlissArtemis | Artemis |
| HHarriet BagnallChristina Onassis | Christina Onassis |
| SShanit KeterYoung Artemis | Young Artemis |
| JJames F. KellyBobby Kennedy | Bobby Kennedy |
 Joris StuyckTeddy Kennedy | Teddy Kennedy |
 Giannis VoglisUncle Alexander | Uncle Alexander |
 Thorley WaltersWinston Churchill | Winston Churchill |
 David GilliamJohn F. Kennedy | John F. Kennedy |
 Garrick HagonRoy Cohen | Roy Cohen |
| RRichard SvareBilly Baldwin | Billy Baldwin |
| MMarella OppenheimLee Radziwell | Lee Radziwell |
 Laura CepedaEmine | Emine |
 José LifanteBarman at Opera | Barman at Opera |
 Paloma CelaMadame Ayshe | Madame Ayshe |
 Vasilis BouyiouklakisSadiq Topal | Sadiq Topal |
