I don‘t know, but I wouldn‘t be surprised. (BTW, generally for English-to-German, some actors like Daniel Brühl or Christoph Waltz do it (the self dubbing), but for example Arnold Schwarzenegger never did, because he has this strong Austrian accent which in German sounds funny and is associated with comedy, and presumalby Conan the Barbarian speaking in Austrian dialect wouldn‘t have done. But these are actors for whom German was their first language. Christopher Lee aside, I can‘t think of an example of an English actor dubbing themselves in a different language.)