Tom Hollander Rev. Adam Smallbone Actor, Executive Producer Olivia Colman Alex Smallbone Actor Steve Evets Colin Lambert Actor Miles Jupp Nigel McCall Actor Simon McBurney Archdeacon Robert Actor Golda Rosheuvel Hostel Worker Guest Star Kayvan Novak Yussef Hasan Guest Star Joseph Kennedy Jez Guest Star Vicki Pepperdine Geri Tennison Guest Star Katie Males Lisa Guest Star Ralph Fiennes Bishop of London Actor Lucy Liemann Ellie Pattman Guest Star Nicholas Sidi George Guest Star Ellen Thomas Adoha Onyeka Guest Star Dexter Fletcher Mike Tobin Guest Star Sasha Waddell Charlotte Hinton Actor Peter Cattaneo Director James Wood Writer Kenton Allen Executive Producer James Wood Executive Producer Hannah Pescod Executive Producer Matthew Justice Executive Producer