Daniel Radcliffe, Jessica Ennis, Ricky Gervais, Bruno Mars (S12E07)

S12E01 Arnold Schwarzenegger, Miranda Hart, Ronnie Corbett, Usher S12E02 Daniel Craig, Dame Judi Dench, Javier Bardem S12E03 Robbie Williams, Paul O'Grady, Darcey Bussell, Felix Baumgartner S12E04 Cameron Diaz, Sarah Millican, Rod Stewart S12E05 Helena Bonham Carter, Jack Whitehall, Michael Palin, Michael Buble S12E06 Jake Gyllenhaal, Joan Rivers, Jeremy Clarkson, James May, Ke$ha S12E07 Daniel Radcliffe, Jessica Ennis, Ricky Gervais, Bruno Mars S12E08 Martin Freeman, Dawn French, Lee Mack, Girls Aloud S12E09 Dustin Hoffman, Billy Connolly, Jennifer Saunders, Matt Smith, Amy Macdonald S12E11 Quentin Tarantino, James McAvoy, Alan Davies, Emeli Sandé S12E12 Denzel Washington, Nicholas Hoult, Bill Bailey, Conor Maynard S12E13 Minnie Driver, Stephen Merchant, Clare Balding, The Script. S12E14 Dame Helen Mirren, Paul Rudd, Leslie Mann, Little Mix S12E15 Mark Wahlberg, Michael Fassbender, Sarah Silverman, Laura Mvula S12E16 Jeremy Renner, Gemma Arterton, Matt Lucas, Delia Smith, Rita Ora S12E17 Richard Gere, John Malkovich, Saoirse Ronan, Taylor Swift S12E18 Jude Law, Mila Kunis, Dame Judi Dench, Olly Murs S12E19 Compilation Show