- Louie Spence - Self - Participant
- Andrea Bocelli - Self - Performer
- Camila Cabello - Self - Performer
- Emma Bunton - Self - Participant
- Robert Rinder - Self - Participant
- Freya Ridings - Self - Performer
- Bear Grylls - Self - Interviewed Guest
- Liam Payne - Self - Performer
- Robbie Williams - Self - Performer
- Sharon Osbourne - Self - Participant
- Craig Revel Horwood - Self - Participant
- Ian Wright - Self - Participant
- Paul Sinha - Himself
- Mark Labbett - Himself
- Kian Egan - Self - Participant
- Nicky Byrne - Self - Participant
- Mark Feehily - Self - Participant
- Shane Filan - Self - Participant
- Harry Redknapp - Self - Participant
- Dermot O'Leary - Self - Interviewed Guest
- Tom Kerridge - Self - Expert
- Tony Hadley - Self - Music
- Bradley Walsh - Self - Interviewed Guest
- Beverley Knight - Self - Music
- Michael Ball - Self - Performer
- Tinie Tempah - Self - Performer
- Geri Halliwell - Self - Participant
- Bryan Adams - Self - Performer
- Émilie Fournier - Self - Performer
- Ellie Goulding - Self - Performer
- Ellie Goulding - Self - Participant
- Josh Widdicombe - Self - Performer
- Ronan Keating - Self - Participant
- Rod Stewart - Self - Performer
- Romesh Ranganathan - Self - Performer
- Peter Jones - Self - Participant
- Rob Beckett - Self - Performer
- Bruno Tonioli - Self - Participant
- Olly Alexander - Self - Performer
- Katherine Jenkins - Self - Performer
- Robbie Savage - Self - Participant
- Russell Howard - Self - Performer
- Alexander Armstrong - Self - Participant
- Ryan Tedder - Self - Performer
- Zach Filkins - Self - Performer
- Drew Brown - Self - Performer
- Eddie Fisher - Self - Performer
- Olly Murs - Self - Performer
- Olly Murs - Self - Participant
- Brent Kutzle - Self - Performer
- Sarah Millican - Self - Performer
- Tom Odell - Self - Performer
- Carol Vorderman - Self - Participant
- Rick Astley - Self - Performer
- Rebecca Adlington - Self - Participant
- Sting - Self - Performer
- Ricky Gervais - Self - Performer
- Jack Whitehall - Self - Performer
- Jamie Oliver - Self - Participant
- Harry Enfield - Self - Performer
- Catherine Tate - Self - Performer
- Alfie Boe - Self - Performer
- Aled Jones - Self - Participant
- Alesha Dixon - Self - Interviewed Guest
- Seal - Self - Performer
- Bill Bailey - Self - Performer
- Miranda Hart - Self - Interviewed Guest
- Niall Horan - Self - Performer
- Jason Manford - Self - Participant
- Connor Ball - Self - Performer
- Marvin Humes - Self - Interviewed Guest
- Rochelle Humes - Self - Interviewed Guest
- Alan Shearer - Self - Interviewed Guest
- Jessie J - Self - Performer
- Kelly Jones - Self - Performer
- Zara Larsson - Herself
- Zara Larsson - Self - Music
- Richard Jones - Self - Performer
- Adam Zindani - Self - Performer
- Tony Kirkham - Self - Performer
- Danny Dyer - Self - Interviewed Guest
- Gary Barlow - Self - Participant
- Grace Chatto - Self - Performer
- Russell Kane - Self - Performer
- Ed Balls - Self - Interviewed Guest
- Emeli Sandé - Self - Performer
- Gary Lightbody - Self - Performer
- Nathan Larkin-Connolly - Self - Performer
- Johnny McDaid - Self - Performer
- Richard Colburn - Self - Performer
- Jonny Quinn - Self - Performer
- Paul Wilson - Self - Performer
- Alan Carr - Self - Interviewed Guest
- Kerry Godliman - Self - Performer
- Alex Jones - Self - Participant
- Alex Jones - Self
- Peter Andre - Self - Interviewed Guest
- George Ezra - Self - Performer
- Cheryl Cole - Self - Performer
- Cheryl Cole - Self - Interviewed Guest
- Chris Kamara - Self - Interviewed Guest
- Anton du Beke - Self - Interviewed Guest
- Gino D'Acampo - Self - Interviewed Guest
- Josh Groban - Self - Interviewed Guest
- Paloma Faith - Self - Performer
- Nile Rodgers - Self - Performer
- Michael Bublé - Self - Performer
- Rita Ora - Self - Performer
- Kylie Minogue - Self - Performer
- Jack Savoretti - Self - Performer
- Holly Willoughby - Self - Interviewed Guest
- Perrie - Self - Performer
- Leigh-Anne - Self - Performer
- Jade Thirlwall - Self - Performer
- Joe Lycett - Self - Interviewed Guest
- Joe Lycett - Self - Performer
- Jesy Nelson - Self - Performer
- Eamonn Holmes - Self - Participant
- Ruth Langsford - Self - Participant
- Rylan Clark - Self - Interviewed Guest
- Peter Crouch - Self - Participant
- Jonathan Ross - Self - Participant
- Chris Ramsey - Self - Participant
- Rosie Ramsey - Self - Participant
- Lewis Capaldi - Self - Performer
- Stacey Dooley - Self - Participant
- Alison Hammond - Self - Interviewed Guest
- Alison Hammond - Self - Participant
- Katherine Ryan - Self - Interviewed Guest
- Frank Lampard - Self - Featured Artist
- Anne Hegerty - Self
- Sam Allardyce - Self
- Barney Walsh - Self
- Jermaine Jenas - Self - Participant
- Jermaine Jenas - Self
- Anne-Marie - Self - Interviewed Guest
- Ricky Wilson - Self - Music
- LeAnn Rimes - Self - Music
- AJ Odudu - Self - Interviewed Guest
- Marcus Bentley - Self
- Rustie Lee - Self
- Denise Pearson - Self
- Jason Donovan - Self
- James Blunt - Self - Music
- James Blunt - Self
- Tom Allen - Self - Interviewed Guest
- Chesney Hawkes - Self - Music
- Éric Cantona - Self - Music
- James Nesbitt - Self
- Rachel Riley - Self
- Simon Staffurth
- Saul Fearnley
- Dan Baldwin
- James C. Pratt
Sting interpreta a Self - Performer en la serie.
Alexander Armstrong interpreta a Self en la serie.
Michael McIntyre hace el papel de Self - Host.
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