Donald Francis Henderson was an English actor. He was known for playing both "tough guy" roles and authority figures, and is remembered for his portrayal of detective George Bulman between 1976 and 1987 in the popular Granada Television police drama series The XYY Man, Strangers, and Bulman, as priest Frank Kane in BBC drama The Paradise Club (1989–90), and as General Taggi in the first Star Wars film (1977). This last role also brought him attention from science fiction fans, and he later appeared in cult science fiction television series Red Dwarf and Doctor Who.

The XYY Man began as a series of novels by Kenneth Royce, featuring the character of William 'Spider' Scott, a one-time cat-burglar who leaves prison aiming to go straight but finds his talents still to be very much in demand by both the criminal underworld and the British secret service. Scott has an extra Y chromosome that supposedly gives him a criminal predisposition – although he tries to go straight, he is genetically incapable of doing so.