The competition reaches its climax as the winners of the three heats face their final challenges before Mary and Paul must decide who is the Great Sport Relief Bake Off champion.
| Name | Type | Role | |
|---|---|---|---|
| Mary Berry | Host | Judge | |
| Paul Hollywood | Host | Judge | |
| Mel Giedroyc | Host | Presenter | |
| Fi Glover | Guest Star | Contestant | |
| Anita Rani | Guest Star | Contestant | |
| Angela Griffin | Guest Star | Contestant |