Russell Brand was asked to answer some questions in character for his role in The Tempest. When he was asked if Trinculo was his first or last name, Brand immediately ad-libbed an entire back-story and did not pause for about five minutes. Afterwards, a stunned Alfred Molina said, "You're the only person I know who can do that."
During his days as a drug addict, he had a show called RE:Brand. The aim of the show was to highlight and challenge human taboos. One of the more memorable episodes featured Racism. He had to hang out with and listen to a member of the BNP (a racist party)and eventually Russell gets so sick of the bigotry, he calls the bastard out on it.
His entire interview on "Morning Joe" has him calling out the show's hosts for their superficiality, rude behavior (they were talking about him like he wasn't there) and complete ignorance to what he's saying and, according to them, "taking over" the show, showing himself to be a better host than they could ever be.