Al Kennedy is an agent for American Intelligence.
In the "letterhead" for the three recorded adventures we have of this intrepid fighter on behalf of the United States, it says he works for the "Secret Service" but this is not the Treasury Department but rather another name for the Intelligence community. But even though he is said to belong to such an organization, he is actually said to work under the direction of one influential person.
Kennedy is "known to the world as a wealthy playboy but in reality the secret emissary of Lucius Blaine, American Ambassador-at-Large." It is Blaine who decides when and where Kennedy goes and who he is to help or hinder. Whether Blaine is using his personal funds to pay the expenses or is in fact working on behalf of the American government is never explained but I believe the latter to be the case.
Kennedy is a tall, good-looking man likely in his early 40s. He possesses lush reddish brown hair brushed back giving him a pronounced widow's peak. He definitely has an eye for the ladies and, considering the reaction he gets in the few instances we have of him with the opposite sex, they eye him right back.
We learn nothing about his personal life and very little about his history with the except of the fact that he served with distinction during World War II in the European theater. It was there that he met and became friends with Casimir "Cass" Stryzinski, a very experienced former member of the Polish Resistance during World War II. Cass acts as Kennedy's 'good man Friday' when Kennedy assumes the guise of playboy but is in fact his sidekick in the missions Blaine hands him. Cass is stalwart and true but tends to mess up rather quickly. Then again, even Kennedy errs a time or two.
Kennedy defines a spy as "part-time con-man, stunt man, daredevil, boxer, gigolo, fall guy, fakir and poor insurance risk". A good quote of his told to Cass is "Never expect anything - except the unexpected."