Answer
One common character trait of T.J. Miller's roles is humor. He often plays characters who are witty, sarcastic, and funny. For example, in the movie "21 Jump Street", he plays a police officer who is always making jokes. In the movie "Deadpool", he plays a character who is a wisecracking mercenary. Miller's humor is often self-deprecating and sarcastic, which makes him a very entertaining actor to watch.