Christoph Waltz hosted SNL last weekend. During the monologue they pranced out a number of characters meant to make fun of Waltz’s native Austria, one of which was Casual Hitler played by Taran Killam.
Casual Hitler is probably very offensive to a lot of people, but it can’t be more offensive than some of the movies Taran (who is very funny) was in before getting on to SNL, like Big Fat Liar or Epic Movie.