Recurring Guest Characters David Walliams 1 guest appearances Justin Bieber 1 guest appearances The Saturdays 1 guest appearances Amy MacDonald 1 guest appearances Carol Vorderman 1 guest appearances Christian Jessen 1 guest appearances Rizzle Kicks 1 guest appearances Paloma Faith 1 guest appearances Fatima Whitbread 1 guest appearances Mo Farah 1 guest appearances Nicola Adams 1 guest appearances Louis Smith 1 guest appearances Heather Stanning 1 guest appearances Helen Glover 1 guest appearances Jimmy Carr 1 guest appearances Jack Whitehall 1 guest appearances Christine Bleakley 1 guest appearances Krishnan Guru-Murthy 1 guest appearances Jamie Laing 1 guest appearances Bruno Mars 1 guest appearances ⇤ « 1 2 3 4 » ⇥