Theo (Sam Cassidy) is a member of the Royal Family, and engaged to be married. He also was involved with the murder victim, Molly Ryan, and was there the night molly was murdered her as per Neville's information. He admitted to his loyal guard, Philip, that he was there to convince her not to have her baby, and did not kill her, but pulled the knife from her as a reflex. He is shot in the finale by Molly's cousin in the right of his chest.
Prince Theo is very impulsive and short-tempered, when threatened. To the people of Scotland he is a very respectful, wise and intelligent man.
A posh, handsome gentleman usually dressed in an elegant suit.