Angelina Jolie (Maria Callas), Pierfrancesco Favino (Ferruccio), Alba Rohrwacher (Bruna), Haluk Bilginer (Aristotle Onassis), Kodi Smit-McPhee (Mandrax), Stephen Ashfield (Jeffrey Tate), Valeria Golino (Yakinthi Callas) more..., Caspar Phillipson (John. F Kennedy), Lydia Koniordou (Lista Callas), Vincent Macaigne (Doctor Fointainebleau), Aggelina Papadopoulou (Young Callas (1940)), Erofili Panagiotarea (Young Yakinthi (1940)), Jörg Westphal (SS Officer), Philipp Droste (SS Officer), Alessandro Bressanello (Giovanni Battista Meneghini), Paul Spera (Ronald), Kay Madsen (Cameraman), Lyes Salem (Waiter), Christophe Favre (Maître d'Hôtel), Hugo Dillon (Pierre), Lidia Zelikmann Kauders (Young Callas (1930)), Toma Hrisztov (Opera Lover), Botond Bartus (Dorchester Man), Rebecka Johnston (Party Guest), Lili Walters (Florist), Jeremy Wheeler (Dorchester Tuxedo Man), János Geréb (Neighbour), Andrew Hefler (Café Guest), Bálint Magyar (Prince Rainier of Monaco), Patrick McCullough (Waiter), Francis McBurney (Hospital Security Guard), Christiana Aloneftis (Young Callas (1947)), Miklós Béres (Neighbour), Lorena Santana-Somogyi (Spectator), Tímea Kása (Spectator), Kembe Sorel (Spectator), András Sütö (Balcony Neighbour), Suzie Kennedy (Marilyn Monroe), Maria Callas (Self (archive footage) (uncredited)), Aristotle Onassis (Self (archive footage) (uncredited))

Serena Fiumi (Costume Supervisor), Edward Lachman (Director of Photography), Attila Illés (Art Direction), Thorsten Kosselek (Gaffer), Lorenzo Mieli (Producer), Juan de Dios Larraín (Producer), Steven Knight (Writer) more..., Jonas Dornbach (Producer), Dániel Pizág (Best Boy Electric), Diego Miranda (Steadicam Operator), Miki Emmrich (Executive Producer), Guy Hendrix Dyas (Production Design), Anna Lovas (Script Supervisor), Tom Ehrhardt (Line Producer), Zsolt Hetyési (Stunt Driver), Paolo Saccinto (Gaffer), Annamária Ligosztájeva (Line Producer), David Minkowski (Co-Producer), Antonio Ernesto Martilotti (Electrician), Sandro Piccarozzi (Set Decoration), Ádám Krupa (Stunts), Milena Fessmann (Music Supervisor), Orestis Dionysopoulos (Transportation Coordinator), Emma Galli (Production Supervisor), Anna Bartalos (Production Assistant), Dávid Szekeres (Props), Csaba Faltay (Music Supervisor), Laura Nathalie Naschlenas (Assistant Camera), Massimo Eleonori (Leadman), Klaus Große Darrelmann (Location Manager), Romain Riché (Key Grip), Anna Döbrössy (Assistant Art Director), Federica Ceraolo (Publicist), Virág Szörenyi (Graphic Designer), Lucas Le Maitre (Assistant Location Manager), Uriel Zylberman (Props), Ádám Vidovics (Electrician), Tibor Bodor (Transportation Coordinator), Dávid Fillenz (Location Manager), Bára Barová (Production Coordinator) and others.