Jim 'JP' Peregrine is an agent with MI6.
When we first meet Peregrine, he is enjoying a fantastic vacation on the Caribbean island of St. Lucia with the beautiful, highly intelligent, and apparently quite wealthy Stella. The two were very much enamored with each other and life was near perfect.
Then Stella is suddenly abducted and we learn things are not as we first believed and that sets the stage for the rest of the adventure; namely that many things are not quite what they seem.
Peregrine is described as an impressive, almost imposing person. "His thick dark hair brushed back cavalierly above the bronzed face and bold determined eyes, his six foot three frame in a smart pin-stripe cutting a figure fringant [dashing figure]." He appears to be financially secure and his uncle is the British High Commissioner of St. Lucia.
We are told that Peregrine had "resigned from the SAS after an exceptionally brilliant albeit brief career", declined an invitation to go work for MI6, and then, a short time later, got involved in events best read for oneself which would lead him back to MI6 and a new line of work. His connections with the SAS will, however, remain strong.
Working closely with him in his adventures are the aforementioned Stella, also known as Stephanie (remember things are not necessarily what they claim to be) and Anna. Both gorgeous and deadly women are interesting and well worth following all on their own.
With his love of excitement and danger and his appreciation for beautiful women, Peregrine's life is never dull.