Lewis Niles Black is an American stand-up comedian, author, playwright, social critic, voice actor, and actor. He is known for his comedy style, which often includes simulating a mental breakdown, or an increasingly angry rant, ridiculing history, politics, religion, trends, and cultural phenomena. He hosted the Comedy Central series Lewis Black's Root of All Evil, and makes regular appearances on The Daily Show delivering his "Back in Black" commentary segment. When not on the road performing, he resides in Manhattan. He also maintains a residence in Chapel Hill, N.C. He is currently the spokesman for Aruba Tourism, appearing in television ads that aired in late 2009 and 2010. He was voted 51st of the 100 greatest stand-up comedians of all time by Comedy Central in 2004; and was voted 5th in Comedy Central's Stand Up Showdown in 2008 and 11th in 2010.
For Disney, he voiced Anger in the Disney/Pixar animated film Inside Out and its 2024 sequel Inside Out 2. He also played J. Ezra Merkin in the ABC TV miniseries Madoff.