Guest Stars James McKenna as Sgt. Don Brady David McKail as Dr. Mackenzie Julia St. John as Dr. Amanda Chase Philip Jackson as DS Billy Sharpe Rosie Timpson as Mary Toolan Julia Dalkin as DC Bennett Danny Webb as Father David Rose Lia Williams as Sylvia Ford Mick Ford as Bill Ford Sara Stewart as Martine Phillips Jeff Rawle as Steve Markham Adam Allfrey as Larry Arnold Amanda Royle as Helen Croft Katie Gale as Lucy Croft Cornelius Macarthy as Dr. Howell