The relationship between a young boy and girl brought together by their love of sci-fi.
| Actor | Role |
|---|---|
| JJames George FordAndrew (grown up) | Andrew (grown up) |
| AAdam GiblinTeacher | Teacher |
| CClaire HickmanAndrew's mother | Andrew's mother |
| PPhil JenningsJessica's father | Jessica's father |
| PPeter OveralAndrew | Andrew |
| BBob SandersonHeadmaster | Headmaster |
| WWayne SwannJessica's grandad | Jessica's grandad |
| HHollie ThouposJessica | Jessica |
 Sarah WhitehouseJessica (grown up) | Jessica (grown up) |