Simon Wheeler Creator Stephen Fry Actor Hermione Norris Actor Celia Imrie Actor Phyllida Law Actor Tony Slattery Actor Thomas-James Fisher Guest Star Gerard Horan Guest Star Tom Beard Guest Star Sarah Woodward Guest Star Pippa Haywood Guest Star Karl Davies Guest Star Robert Horwell Guest Star Oliver Phelps Guest Star James Phelps Guest Star Sara Markland Guest Star Howard Crossley Guest Star Angus Imrie Guest Star Kate O'Flynn Guest Star John Thomson Guest Star Georgina Lowe Producer