An ordinary day becomes a world of terror as every single child in the world stops. A message is sent to the governments of Earth: 'We are coming'. As a trap closes around Captain Jack, sins of the past return, as long-forgotten events from 1965 threaten to reveal an awful truth.
| Name | Type | Role | |
|---|---|---|---|
| Russell T Davies | Writer | ||
| Paul Copley | Guest Star | Clement McDonald | |
| Melanie Barker | Guest Star | Mother | |
| Christopher James | Guest Star | Press Officer | |
| Cush Jumbo | Guest Star | Lois Habiba | |
| Bear McCausland | Guest Star | Steven Carter | |
| Rhodri Lewis | Guest Star | Johnny Davies | |
| Nicholas Farrell | Guest Star | Brian Green | |
| Scott Bailey | Guest Star | Father | |
| Phylip Harries | Guest Star | Water Taxi Man | |
| Liz May Brice | Guest Star | Johnson | |
| Julia Joyce | Guest Star | Holly Frobisher | |
| Hilary Maclean | Guest Star | Anna Frobisher | |
| Susan Brown | Guest Star | Bridget Spears | |
| Ben Loyd-Holmes | Guest Star | Operative | |
| Charles Abomeli | Guest Star | Colonel Oduya | |
| Madeleine Rakic-Platt | Guest Star | Lilly Frobisher | |
| Anna Lawson | Guest Star | Nurse | |
| Lucy Cohu | Guest Star | Alice Carter | |
| Luke Perry | Guest Star | David Davies | |
| Rik Makarem | Guest Star | Rupesh Patanjali | |
| Peter Capaldi | Guest Star | John Frobisher | |
| Crisian Emanuel | Guest Star | Mother | |
| Rachel Ferjani | Guest Star | Parliamentary Secretary | |
| Ian Gelder | Guest Star | Mr Dekker | |
| Aimee Davies | Guest Star | Mica Davies | |
| Katy Wix | Guest Star | Rhiannon Davies | |
| Euros Lyn | Director |