Guest Stars Louisa Mignone as Violetta Fellini Toby Truslove as Samuel Birnside Katie Robertson as Constable Fleur Connor Greg Stone as Chief Inspector Sparrow Jessica Grace Smith as Professor Elaine Montgomery Steve Mouzakis as Dr. Hans Peterson Anthony Phelan as Arthur Morris David Whiteley as Sgt. Malcolm Levine James Beck as Charles Naylor Jane Bayly as Dr. Cecile Armand Sarah Spaven as Tanya Doppler Matthew Connell as Tommy Vorton Caroline Lee as Rosemarie Kowalski Susan-Ann Walker as Margaret