Lauren Ambrose as Dorothy Turner
Toby Kebbell as Sean Turner
Nell Tiger Free as Leanne Grayson
Rupert Grint as Julian Pearce
Boris McGiver as Uncle George
Tony Revolori as Tobe
Molly Griggs as Isabelle Carrick
Jerrika Hinton as Natalie
Katie Lee Hill as Kourtney
Denny Dillon as Bev
Barbara Kingsley as Bobbie