Michael Lee is an agent with the British Secret Service.
That pretty much sums up what we know about this man, unfortunately, except that he operated during the Second World War and that he is quite obviously the man to call when there is trouble to be dealt with.
From the very few images I have come across so far, he is clean shaven, wears a fedora (as was normal in those days), is partial to checked suits, and commonly seen smoking a pipe.
We know that several of his adventures take him up against the Nazis who were occupying France at the time but one of his missions clearly takes him to the Far East where he had a go at the Japanese.
For a short time, Lee is joined in his missions with an attractive young woman named Dee Alden who shows she has no qualms about getting into the action along with her boss, and from the looks of it when she as a passenger in a convertible racing down the two-lane, shooting her pistol at a strafing aircraft just a few feet off the ground, she means business. To Lee's credit, he is monitoring the situation while staying on the road.
Towards the end of his recorded career, he was joined in action by Duncan MacLean who is clearly a very tall, brawny Scotsman (based on his name and his constant wearing of a kilt). How they met and became partners is not known but this big guy is ever eager to smash his way in to get at the bad guys, though he is shown pounding his way through a brick wall when a door might have been easier. In another adventure he is shown holding up a two-wheeled cannon to toss at fleeing Germans. Handy fellow to have around!