Guest Stars Grace Vance as Molly Drake Joseph Long as Luigi Geff Francis as Viv James Amelia Bullmore as Caroline Price Stephen Campbell Moore as Evan White Andrew Clover as The Clown Lucy Cole as Young Alex Lydia Leonard as Sara Templeton Sarah Kants as Erin Simon Kassianides as Mortuary Assistant Lucy Briers as Patty Paul Thornley as Ian Kay Michael Hadley as Harvey Dunn Jeanie Gold as Party Goer