| Dev Patel | Srinivasa Ramanujan |
| Jeremy Irons | G.H. Hardy |
| Stephen Fry | Sir Francis Spring |
| Toby Jones | Littlewood |
| Jeremy Northam | Bertrand Russell |
| Kevin McNally | Major McMahon |
| Devika Bhise | Janaki |
| Enzo Cilenti | Doctor |
| Anthony Calf | Actor |
| Alexander Cooper | Stretcher Bearer |
| Shazad Latif | Chandra Mahalanobis |
| Richard Johnson | Actor |
| Padraic Delaney | Beglan |
| Roman Green | Wounded Soldier |
| Nicholas Agnew | Andrew Hartley |
| Eleanor Inglis | Ward Sister |
| Roger Narayan | Mr. Iyengar/The Scribe |
| Richard Cunningham | Hobson |
| Alan Bentley | Fellow |
| Elaine Caulfield | Ward Sister |
| Arthur Wilde | Patient |
| Devlin Lloyd | Student/Cadet |
| Pat Carney | Fellow of the Royal Society |
| Dominic Cazenove | Waiter |
| David Shaw Parker | Porter |
| Shenagh Govan | Postmistress |
| James Francis Andrews | Passer-By/Soldier |
| James Thomas Scott | Fellow |
| Thomas Bewley | Baker |
| Alex Bartram | Hospital Doctor |
| Imogen Sage | Nursie |
| Alexander Forsyth | Barnie |
| Pip Barclay | Student |
| Jon Lawes | Wounded Soldier |
| Jack Philips | Student Bully/Soldier |
| Adam Nicholas Patrick Hodge | Schoolboy |
Technical Credits
| Matt Brown | Director,Producer,Screenwriter |
| Raj Acharya | Asst. Director |
| Luciana Arrighi | Production Designer |
| Nick Bain | Associate Producer |
| Manjul Bhargava | Associate Producer |
| Swati Bhise | Executive Producer |
| JC Bond | Editor |
| Audrey Kathleen Chong | Associate Producer |
| David Cochrane | Associate Producer |
| Joseph Newton Cohen | Executive Producer |
| Louise Coles | Makeup |
| Lydia Currie | Asst. Director |
| Gary Ellis | Executive Producer |
| Samir Foco | Sound/Sound Designer |
| Melissa Robyn Glassman | Associate Producer |
| Pamela Godfrey | Executive Producer |
| Cate Hall | Makeup |
| Phil Hunt | Executive Producer |
| Joe Thomas | Producer |
| Huw Penalt Jones | Co-producer |
| Jon Katz | Producer |
| Vinod Kumar | Associate Producer |
| Phil Lee | Sound Mixer |
| Tayyab Madni | Associate Producer |
| Takase Masayuki | Associate Producer |
| Mark Montgomery | Executive Producer |
| Anthony Timothy Morris | Associate Producer |
| Kumagi Nariaki | Associate Producer |
| Ken Ono | Associate Producer |
| James Passin | Associate Producer |
| Reg Poerscout-Edgerton | Casting |
| Edward R. Pressman | Producer |
| Sarah Ramey | Associate Producer |
| Compton Ross | Executive Producer |
| Manraj S. Sekhon | Executive Producer |
| Shail Shah | Executive Producer |
| Parveen Shereef | Associate Producer |
| Tristine Skyler | Executive Producer |
| Larry Smith | Cinematographer |
| Sofia Sondervan | Producer |
| Apparswamy Subramanian | Associate Producer |
| Min-Li Tan | Executive Producer |
| Masaaki Tanaka | Executive Producer |
| Anand Tharmaratnam | Associate Producer |
| Nakai Toshinori | Associate Producer |
| Richard Toussaint | Executive Producer |
| Richard Van Den Bergh | Special Effects Supervisor |
| Ian Voigt | Sound Mixer |
| Samantha Waite | Production Manager |
| Sam Raj Kumar Wilson | Associate Producer |
| Jim Young | Producer |
