Recurring Guest Characters Sharon White 1 guest appearances Billie Jean King 1 guest appearances Greta Thunberg 1 guest appearances Novak Djokovic 1 guest appearances Ian McKellen 1 guest appearances Sundar Pichai 1 guest appearances Nile Rodgers 1 guest appearances Bill Gates 1 guest appearances Richard Branson 1 guest appearances Piers Morgan 1 guest appearances Brian Cox 1 guest appearances Bob Woodward 1 guest appearances Carl Bernstein 1 guest appearances Phillip Schofield 1 guest appearances Ronnie O'Sullivan 1 guest appearances Sheila Hancock 1 guest appearances