Stephen Mangan Richard Pitt Actor, Writer, Executive Producer Bebe Cave Issy Pitt Actor Fionn O'Shea Ricky Pitt Actor Katherine Parkinson Karen Muller Actor Richard E. Grant Leonard Conrad Actor Karl Theobald Pete Thompson Actor Charles Dance Jeremy Pitt Actor Conleth Hill Jon Actor Celia Imrie Actor Jessica Hynes Katherine Actor David Tennant Martin Actor Daisy Haggard Jane Actor Kevin Eldon Terry Actor Steve Oram Neil Actor Robert Delamere Writer, Director Louise Delamere Producer Kevin Loader Executive Producer