 | Romola Garai als Eleanor 'Tussy' Marx |
 | Patrick Kennedy als Edward Aveling |
 | John Gordon Sinclair als Friedrich Engels |
 | Felicity Montagu als Helene Demuth |
 | Karina Fernandez als Olive Schreiner |
 | Emma Cunniffe als Laura Marx |
 | George Arrendell als Paul Lafargue |
 | Célestin Ryelandt als Johnny Longuet |
 | Oliver Chris als Freddy |
 | Alexandra Lewis als Edward's young wife |
 | Georgina Sadler als Gerty |
| Miel Van Hasselt als Wilhelm Liebknecht |
 | Freddy Drabble als Havelock Ellis |
 | Philip Gröning als Karl Marx |
| Marco Fabbri als Charles Longuet |
 | Clelia Rossi Marcelli als Young Eleanor |
| Michael Fitzpatrick als Butler |
| Max Viale als Magician's assistant |
 | Lucio Patané als Magician |
 | Marco Quaglia als William |
 | Bruce McGuire als Conference man |
| Elisabeth McCreton als Conference woman |
| Gabrielle Chiararo als Woman worker sigar factory |
| Pamela Jane Eastwood als Woman unionist coat factory |
 | David Kirk Traylor als Broncho John |
 | Christoph Hülsen als German socialist |
| Julian Maerten als Henry 4 y.o. |
| Stevie Raine als Philip |
| Edoardo Giardini als Factory boy |
| Sofia Pauly als Sick woman |
| Annika Serong als Louise Kautsky |
| Philippe Gadziola als Louise's husband |
| John Dobrynine als Engels' doctor |
| Francis Pardeilhan als Bearded man |
| Ludovico Benedetti als Henry 10 y.o. |
 | Katie McGovern als Orphanage comrade |
| Stéphane Lodzia-Brodzki als French doctor |
 | Barney White als Michael |
| Jay Natelle als Pharmacist |
| Margherita Attorre als Young Laura Marx |
 | Maria Vera Ratti als Jenny Marx |
| Gregorio Paonessa | Producer |
| Susanna Nicchiarelli | Director |
| Massimo Cantini Parrini | Costume Designer |
| Marta Donzelli | Producer |
| Stefano Cravero | Editor |
| Crystel Fournier | Director of Photography |
| Michela Bozzini | Script Supervisor |
| Helene Pigeard-Benazera | Production Manager |
| Adriano Di Lorenzo | Sound Recordist |
| Gianluca Chiaretti | Line Producer |
| Igor Gabriel | Production Design |
| Ciro Scognamiglio | First Assistant Director |
| Philippe Logie | Associate Producer |
| Marc Bastien | Sound Editor |
| Domingo Santoro | Hairdresser |
| Alessandro Vannucci | Production Design |
| Valérie Bournonville | Co-Producer |
| Diego Prestopino | Makeup Artist |
| Gail Stevens | Casting |
| Franco Piscopo | Sound Mixer |
| Alessio Lazzareschi | Executive Producer |
| Joseph Rouschop | Co-Producer |
| Serena Alfieri | Delegated Producer |
| Rebecca Farhall | Casting |
| Fiorella Cicolini | Set Decoration |
| Lev Sordi | Unit Manager |
| Monica Verzolini | Post Production Supervisor |
| Amanda Petrella | Set Dresser |
| Claudia Cravotta | Production Manager |
| Roland Voglaire | ADR Mixer |
| Pierre Greco | Foley Artist |
| Simone Paralovo | Assistant Director |
| Guendalina Barbieri | Assistant Set Decoration |
| Marc'Antonio Brandolini | Art Direction |
| Catherine Tilmant | Makeup Artist |
| Benedetta Barroero | Second Assistant Director |
| Philippe Blonda | Assistant Art Director |
| Gianni Aldi | Steadicam Operator |
| Massimiliano Battista | Visual Effects Supervisor |
| Paola Seghetti | Seamstress |
| Pierre Dermience | Lighting Technician |
| Riccardo Mellana | Key Grip |
| Giampiero Cambursano | Electrician |
| Pierre Assenat | Assistant Camera |
| Olivier Merckx | Steadicam Operator |
| Enzo Pontil | Grip |
| Jessica Zambelli | Assistant Costume Designer |
| Maurizio Cossu | Production Assistant |
| Loïc Carrera | Second Assistant Camera |
| Sara Patti | Extras Casting |
| Ottavia Virzì | Costume Assistant |
| Benedetta Marchiori | Assistant Editor |
| Paolo Tarantini | Post Production Assistant |
| Alessio Lampazzi | Grip |
| Marco Moroni | Key Grip |
| Michela Bozzini | Continuity |
| Morena Terranova | Assistant Editor |
| Marco Mattei | Production Accountant |
| Angelo Pace | Grip |
| Annie Laloy | Extras Casting |
| Nazzareno Neri | Colorist |
| Yvan Coene | Steadicam Operator |
| Paolo Saccinto | Gaffer |
| Claudia Mignosi | Casting |
| Maxence Moyne | Location Assistant |
| Chiara Coppolella | Video Assist Operator |
| Iacopo Alecci | Grip |
| Tom Denoël | Production Coordinator |
| Susanna Nicchiarelli | Writer |
| Paolo Del Brocco | Co-Producer |
