James is the youngest son of one-time London city boss Commodore Edward McGraw and showgirl Gillian Gray. James was growing up with his brother Richard, they had no problems in the family - they had food, fame, wealth and connections as their father was a great man. Edward didn't pay much attention to his youngest son James, he had his plans on Richard, hoped that he'd grow up to be a really famous man. While Richard was getting diplomacy education, Jimmy was skipping school and hanging out with older people in his neighbourhood, which taught him more than school would, it's known that school doesn't teach life.
James is known to be a master seducer, he knows his way with the ladies. That's the reason he almost died and had to be in hiding for a year he was caught having sex with a wife of really famous diplomat in London. When he finally returned to London he found out that their father passed away and his older brother Richard was left with his father's wealth and businesses.