Guest Stars Pearl Mackie as Alysse Jess Chanliau as Ronnie Buckhurst Tim Delap as Byron Kenichiro Thomson as Martin Georgie Henley as Pensy Adam Silver as Howard Nana Mensah as Billie Appiah Miguel Sandoval as Miguel Ganon Michael McKean as President William Rayburn Bhav Joshi as Anu Kapoor Alec Nicholls as Secretary Leiber Joey Eden as Dan John Schwab as Roger Post Catherine Russell as Jill Klein Matilda Ziegler as Olga Ian Drysdale as Oleg Balakin Glenn Wrage as Lewis Quainton Robert J. Purdy as General Gianna Kiehl as Carly Green