Joe Anderson's German accent

Even though it´s almost a year but since I´m watching it right now on SyFy:
Yes. He was pretty good except for the pronounciation of his brother´s name "Heinrich". Us Germans pronounce a ch like a hard h and not like a k . He pronounced it Heinrik (which is typical for Americans trying to pronounce it). The ch is more like a strong breath from the back of the mouth (not really the throat). Sounds a little like blowing winds.