 | Bella Ramsey als Kitty |
 | Toby Woolf als David |
 | Nicholas Woodeson als Albert Einstein |
 | Simon Paisley Day als Oliver Locker-Lampson |
 | John Dagleish als Father |
| Luke Rodgers | Director |
| Simon Lord | Screenplay |
| Robin Whenary | Director of Photography |
| Xanna Ward Dixon | Editor |
| Niina Topp | Production Design |
| Louisa Thomas | Costume Design |
| Gareth Tandy | First Assistant Director |
| Emanuele Costantini | Sound Recordist |
| Justin Dolby | Dialogue Editor |
| Karl Hui | First Assistant Camera |
| Teresa Adamson | Second Assistant Camera |
| Emilio Schlappi | Steadicam Operator |