Murdoch Foyle is a recurring character of the first season of Miss Fisher's Murder Mysteries and he's protrayed by the English actor Nicholas Bell.
Overview
Phryne’s nemesis, and the suspected murderer of her little sister, Janey. Foyle is a former university lecturer. His deepest desire is to transcend this universe and transport himself to an imagined ‘otherworld’. Though he was never tried for the abduction of Phryne’s sister, he has been in jail for the past 14 years on a kidnap charge – and Phryne intends to keep him there.
Foyle wrote a letter to get Phryne's attention, promising to tell her what happened to her sister Janey in exchange for his release from prision. Phryne visited him in jail but resisted his bargain suggestion.