Guest Stars Michael Jibson as Matthew Evansford Ryan Reffell as John Ransome Caspar Griffiths as Frankie Seaborne Gerard Kearns as Henry Banks Dixie Egerickx as Jo Ransome Jamael Westman as Dr. George Spencer Lily-Rose Aslandogdu as Naomi Banks Robin Berry as Jonah Tommy French as Samuel Nitin Ganatra as Charles Ambrose Henry Davis as Doctor Morton John MacCormick as Doctor Caldwell Zoe Scott as Cora's Maid Michelle Asante as Maureen Fry Jules Chan as Doctor Lim Cal MacAninch as Michael Seaborne Paul Antony-Barber as Rollings Gareth Berliner as Thomas Taylor Benjamin Connolly as Medical Student Rebecca Ineson as Gracie Banks