Guest Stars Pearl Mackie as Alysse Jess Chanliau as Ronnie Buckhurst Tim Delap as Byron Kenichiro Thomson as Martin Georgie Henley as Pensy Nana Mensah as Billie Appiah Penny Downie as Frances Munning Michael McKean as President William Rayburn Alec Nicholls as Secretary Leiber John Schwab as Roger Post Leroy Bonsu as Andrew