Guest Stars Camilla Arfwedson as Scarlett Mortmaigne Juliet Aubrey as Selina Mortmaigne Stella Gonet as Frances Woodville Jonathan Bailey as Titus Mortmaigne Nathaniel Parker as Philip Coleman Guy Henry as Professor Pelham Alex Knight as Bus Driver Hugh O'Conor as Father Jasper Georgia Groom as Briony Grahame Gerard Horan as DC Hooper Jonty Stephens as Ralph Grahame Pip Carter as Paul Hopkiss Richard Johnson as Augustus Mortmaigne Richard Saade as Tarek Shimali
