Guest Stars Hugh Quarshie as Dr. Leon Parmer Issey King as Martha Parmer Frances Grey as Olivia Parmer Garry Cooper as Cliff Cringle Danyal Ismail as Yousef Adwan Joyce Veheary as Dr. Lucy Yo Angela Sims as Pat Cringle Heather Bleasdale as Val Kirkstall Kirsten Foster as Tasmin Yo Geoffrey Lumb as Rob McShane Spike Leighton as Aaron Kirkstall Freya McNulty as Zoe McShane Isabel Butt as Raya Bellingham Sean Kearns as James Stratton