Mary Young: Mary Young. Actress: Agente segreto 777 - Operazione Mistero. Mary Young is known for Agente segreto 777 - Operazione Mistero (1965) and The Murder Clinic (1966).
Known For: Agente segreto 777 - Operazione Mistero (Louise Dexter), The Murder Clinic (Lizabeth Vance)
