Recurring Guest Characters Joseph Gordon-Levitt 1 guest appearances Jamie Laing 1 guest appearances Katherine Ryan 1 guest appearances Dianna Agron 1 guest appearances Caroline Flack 1 guest appearances Joe Lycett 1 guest appearances John Martin 1 guest appearances Tinie Tempah 1 guest appearances Kat Dennings 1 guest appearances Dynamo 1 guest appearances Chris Hemsworth 1 guest appearances John Newman 1 guest appearances Natalie Portman 1 guest appearances Nicole Scherzinger 1 guest appearances Seann Walsh 1 guest appearances Paul Daniels 1 guest appearances Little Mix 1 guest appearances Wretch 32 1 guest appearances McFly 1 guest appearances Britney Spears 1 guest appearances ⇤ « 1 2 » ⇥