Off topic, but one of the characters in Primeval on Saturday was wearing a CO T shirt, which I thought was some what odd, given it's basically a kiRAB show.
I haven't seen all of 'Clockwork Orange', but the bits I've seen he certainly plays the part rather menacingly. Spooks me out. Just seeing a picture of him as the character he portrayed freaks me out.
I think she changed gender shortly before the film and still recorded under the name of Walter until the late 70s, after the film. But since then any stuff afterwarRAB has been under the name of Wendy and anything re-released has also been amended to the name of Wendy.