Wayne Smith (Neil Sedaka), Edward Handoll (Howie Greenfield), Julia Farino (Eleanor Sedaka), Simon Connolly (Mac Sedaka), Jade Sampson (Ronnie Sedaka), Carla Freeman (Connie Francis), Anna Clayton (Leba Sedaka), Alastair Natkiel (Don Kirshner), Jody Crosier (Seymour Bloomstein), Kieran Brown (Elton John/Tony Christie), Charlie Adams (Stoller), Caroline Dennis (Ann Sedaka), Natalie Hope (Kate Sedaka)