It's A Sin's Olly Alexander, Nathaniel Curtis, Lydia West and Shaun Dooley compete for the coveted Christmas Star Baker title, and the London Community Gospel Choir perform All I Want for Christmas.
| Name | Type | Role | |
|---|---|---|---|
| Olly Alexander | Guest Star | ||
| Lydia West | Guest Star | ||
| Nathaniel Curtis | Guest Star | ||
| Shaun Dooley | Guest Star | ||
| Jeanette Goulbourn | Director |