| Tilda Swinton | Ada Augusta Byron King, Countess of Lovelace |
| Francesca Faridany | Emmy Coer |
| Karen Black | Lady Byron/Mother Coer |
| Timothy Leary | Sims |
| John O'Keefe | Charles Babbage |
| J.D. Wolfe | Nicholas Clayton |
| John Perry Barlow | John Crosse |
| Owen Murphy | William Lovelace |
| Esther Mulligan | Mary Shelley |
A woman researching cybertechnology communicates with Victorian spiritual mentor Ada Byron King .
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