Sarah Jane finds a baby girl on her doorstep and tries to find out who abandoned her. At a nuclear power station, a beautiful woman appears out of thin air and uses alien powers to take control. She's looking for something - and realises that Sarah Jane may just have it.
| Name | Type | Role | |
|---|---|---|---|
| Phil Ford | Writer | ||
| Paul Kasey | Guest Star | The Metalkind | |
| Floella Benjamin | Guest Star | Professor Rivers | |
| Mina Anwar | Guest Star | Gita Chandra | |
| Chloe Savage | Guest Star | Baby Sky | |
| Peter-Hugo Daly | Guest Star | Hector | |
| Ace Bhatti | Guest Star | Haresh Chandra | |
| Ella Savage | Guest Star | Baby Sky | |
| Will McLeod | Guest Star | The Metalkind | |
| Christine Stephen-Daly | Guest Star | Miss Myers | |
| Amber Donaldson | Guest Star | Baby Sky | |
| Gavin Brocker | Guest Star | Caleb | |
| Scarlet Donaldson | Guest Star | Baby Sky | |
| Ashley Way | Director |