Al Glenne is an agent with the French Secret Service.
While his age is not mentioned, facts point to his having been an agent for some time before the first recorded adventure, putting him in his early 30's at least. He had served with the Resistance during World War II, according to remarks made, and has worked for the Secret Service of his country since then. As is to be expected for a secret agent of the 50s and 60s, Glenne has a tremendous appreciation of the female form, a love only made stronger by the fact that he is French.
Glenne is a loner by nature but one who has a large cadre of friends, many of whom reappear from time to time.