Nick Boyle (played by Martin Cummins) - A former Navy SEAL who resigned after his commander caused the deaths of the other men in his unit. His father was a member of the Legacy before him, and though he is still revered by the Precepts, Nick is still haunted by his father's abuse. Nick had a brash and impulsive nature which often caused him to clash with the methodical Derek, although Derek once referred to Nick's lack of respect for the powers of evil as his greatest strength. He is an expert in weapons and tactics as well as being a skilled investigator, and he becomes Precept at the end of the series.