Andrew Dean Richardson, born on the 14th January 1842, is a world renowned American/Canadian (we're not quite sure anymore) actor and a tragic sufferer of the rare disease Hairdiscolourationdisorderitis which causes his hair to change colour depending upon however he feels about a particular project. He is most famed for the role he played in MacGyver Star Gate, when he was feeling particularly feisty, hence his hair at this time was blonde.