The Doctor and Ruby meet The Beatles but discover that the all-powerful Maestro is changing history. London becomes a battleground with the future of humanity at stake.
| Name | Type | Role | |
|---|---|---|---|
| Russell T Davies | Writer | ||
| Johannes Radebe | Guest Star | Johannes Radebe | |
| Philip Davies | Guest Star | George Harrison | |
| Simon Jason-Smith | Guest Star | Vinnie | |
| Sherinne Kayra Anderson | Guest Star | Tea Trolley Lady | |
| James Hoyles | Guest Star | Ringo Starr | |
| Laura June Hudson | Guest Star | Elderly Woman | |
| Ed White | Guest Star | George Martin | |
| Chan Shoker | Guest Star | Studio Producer | |
| Jeremy Limb | Guest Star | Timothy Drake | |
| Murray Gold | Guest Star | Murray Gold | |
| George Caple | Guest Star | Paul McCartney | |
| Josie Sedgwick-Davies | Guest Star | Cilla Black | |
| Kit Rakusen | Guest Star | Henry Arbinger | |
| Shirley Ballas | Guest Star | Shirley Ballas | |
| Chris Mason | Guest Star | John Lennon | |
| Susan Twist | Guest Star | Tea Lady | |
| Jinkx Monsoon | Guest Star | Maestro | |
| Ben Chessell | Director |