| Person | Type | Job | Role(s) |
|---|---|---|---|
 Alan Titchmarsh | Cast | Actor | Self - Performer |
 Ben Miller | Cast | Actor | Self - Performer |
 Daniel Brocklebank | Cast | Actor | Self - Performer |
 Elaine Paige | Cast | Actress | Self - Judge |
 Fern Britton | Cast | Actress | Self - Performer |
 Gyles Brandreth | Cast | Actor | Self - Performer |
 Jessica Hynes | Cast | Actress | Self - Performer |
 John Barrowman | Cast | Actor | Self - Host |
 Kristin Chenoweth | Cast | Actress | Self - Judge |
 Michael Crawford | Cast | Actor | Self - Mentor |
 Rebecca Front | Cast | Actress | Self - Performer |
 Sally Phillips | Cast | Actress | Self - Performer |
 Tessa Peake-Jones | Cast | Actress | Self - Performer |
 Tony Robinson | Cast | Actor | Self - Performer |
 Andrew Flintoff | Cast | Actor | Self - Host |
 Catherine Tyldesley | Cast | Actress | Self - Performer |
 Denise Lewis | Cast | Self - Performer | |
 Radzi Chinyanganya | Cast | Actor | Self - Performer |
 Samantha Barks | Cast | Actress | Self - Judge |
 Michael Parr | Cast | Actor | Self - Performer |
 London Hughes | Cast | Self - Performer | |
 Joel Dommett | Cast | Actor | Self - Performer |
 Anita Rani | Cast | Self - Performer | |
 Barney Walsh | Cast | Actor | Self - Performer |
 Nicky Campbell | Cast | Actor | Self - Performer |
Amy Walsh | Cast | Actress | Self - Performer |
 Martin Lewis | Cast | Actor | Self - Performer |
 Trevor Dion Nicholas | Cast | Actor | Self - Judge |
 Robert Rinder | Cast | Actor | Self - Performer |
 Ranj Singh | Cast | Actor | Self - Performer |
Kevin Clifton | Cast | Self - Judge | |
Luisa Brandshaw | Cast | Self - Performer | |
| Person | Type | Job | Role(s) |
