Brad Pitt is amazing and other characters too. Mike Myers has a small and weird but great role, and some of the basterds you will recognize from TV series such as Heroes' Sylar or that jewish kid from Freaks and Geeks (he obviously plays a jew in the movie as well). There's even one of the basterds named Hugo, hehe.

Great characters, great story, great directing... Best entertainment (as well as piece of art) in a long time.