Curtis Hoyle

Curtis Hoyle is a Marvel Comics character that will appear in The punisher, played by Jason R. Moore. He is an United States Marine that served alongside Frank Castle in the Gulf War, and later became a CIA agent. Curtis knows that Frank is the Punisher, and thus it's his duty to apprehend Frank, but at the same time he is still Frank's friend, so he secretly helps Frank while still offically being tasked to apprehend him.