Luca Parenti

 was an Italian archaeologist who helped Gareth Edmons on his expedition. He was Natalie Redfern's boyfriend. He told Sarah Jane Smith that she was the herald of the Orbus Postramo, and attempted to kill her before being killed himself by Josh Townsend. (AUDIO: Buried Secrets) Luca's death deeply upset Natalie and she became deeply resentful of Josh for his part in it. (AUDIO: Dreamland)