S12 E1: Arnold Schwarzenegger, Miranda Hart, Ronnie Corbett, Usher

S12 E2: Daniel Craig, Dame Judi Dench, Javier Bardem

S12 E3: Robbie Williams, Paul O'Grady, Darcey Bussell, Felix Baumgartner

S12 E4: Cameron Diaz, Sarah Millican, Rod Stewart

S12 E5: Helena Bonham Carter, Jack Whitehall, Michael Palin, Michael Buble

S12 E6: Jake Gyllenhaal, Joan Rivers, Jeremy Clarkson, James May, Ke$ha

S12 E7: Daniel Radcliffe, Jessica Ennis, Ricky Gervais, Bruno Mars

S12 E8: Martin Freeman, Dawn French, Lee Mack, Girls Aloud

S12 E9: Dustin Hoffman, Billy Connolly, Jennifer Saunders, Matt Smith, Amy Macdonald

S12 E10: Josh Groban, Billie Piper, Frank Skinner, Example

S12 E11: Quentin Tarantino, James McAvoy, Alan Davies, Emeli Sandé

S12 E12: Denzel Washington, Nicholas Hoult, Bill Bailey, Conor Maynard

S12 E13: Minnie Driver, Stephen Merchant, Clare Balding, The Script.

S12 E14: Dame Helen Mirren, Paul Rudd, Leslie Mann, Little Mix

S12 E15: Mark Wahlberg, Michael Fassbender, Sarah Silverman, Laura Mvula

S12 E16: Jeremy Renner, Gemma Arterton, Matt Lucas, Delia Smith, Rita Ora

S12 E17: Richard Gere, John Malkovich, Saoirse Ronan, Taylor Swift

S12 E18: Jude Law, Mila Kunis, Dame Judi Dench, Olly Murs

S12 E19: Compilation Show