Branaugh did a project called “The Goebbels Experiment”, where he read from Goebbels’ Diary. Really did a good job of voicing it.
Kenneth Branaugh and Nazis: don’t forget Conspiracy (2001). He plays Reinhard Heydrich. Incredible performance; a must see if you’ve not seen it.
Also was in “Swing Kids”, but for some reason he was uncredited.