Darren Palmer, Emma Watkins, Lincoln Lewis and Poh Ling Yeow will team up with contestants from the past series in a festive celebration. Who will have the best Christmas build?
| Name | Type | Role | |
|---|---|---|---|
| Emma Watkins | Guest Star | ||
| Lincoln Lewis | Guest Star | ||
| Poh Ling Yeow | Guest Star | ||
| Darren Palmer | Guest Star |