 | Andy Serkis als Albert Einstein |
 | David Tennant als Arthur Eddington |
 | Richard McCabe als Frank Dyson |
 | Patrick Kennedy als William Marston |
 | Rebecca Hall als Winnie Eddington |
 | Jim Broadbent als Sir Oliver Lodge |
 | Jacob Theato als Eduard Einstein |
| Callum Williams als Hans Einstein |
 | Lucy Cohu als Mileva Einstein |
 | Donald Sumpter als Max Planck |
 | Anton Lesser als Fritz Haber |
 | Paul Brooke als H H Turner |
 | Eleanor Tomlinson als Agnes Muller |
 | Jodhi May als Elsa Einstein |
 | Philip Whitchurch als Uncle Rudolf |
 | Kika Markham als Aunt Fanny |
 | Benjamin Uttley als Tennis Player 1 |
| Philip Martin | Director |
| Paola Villanueva Bidault | Producer |
| Peter Moffat | Writer |
| George Faber | Executive Producer |
| Ildikó Kemény | Co-Producer |
| Charles Pattinson | Executive Producer |
| Mark Pybus | Producer |
| David M. Thompson | Producer |
| Nicholas Hooper | Original Music Composer |
| Julian Court | Director of Photography |
| Trevor Waite | Editor |
| Nina Gold | Casting |
| Claire Kenny | Production Design |
| Steve Clark | Art Direction |
| Hayden Matthews | Supervising Art Director |
| Attila Raczkevy | Art Direction |
| Zoltán Horváth | Set Decoration |
| Magdi Kondorosi | Set Decoration |
| Joanna Eatwell | Costume Design |
| Karen Dawson | Makeup & Hair |
| Judith Gill-Dougherty | Makeup Artist |
| Ildikó Makk | Hairstylist |
| Deanne Turner | Makeup Designer |
| Iain Eyre | Dialogue Editor |
| Forbes Noonan | Foley Recordist |
| John Rodd | Sound Mixer |
| Dolores McGinley | Visual Effects |
| Chris Mortimer | Visual Effects |
| Iain Read | Visual Effects |
