- Got his start in improv comedy clubs.
- Played "Money Mike" in the 2002 film Friday After Next.
- Released a 2006 comedy CD, Katt Williams Live.
- Starred in an HBO stand-up comedy special, Katt Williams: The Pimp Chronicles Pt. 1, in 2006.
- Has appeared in music videos for such artists as Westside Connection, Outkast and Ludacris.
- Was arrested on gun charges in 2008, but made bail in time to perform at a sold-out show at Carnegie Hall in New York City; the charges were eventually dropped.
- Appeared in a commercial for energy shots in 2012.
- Has one biological son and seven adopted children.
- 2018, Emmy — Outstanding Guest Actor in a Comedy Series: Winner
- Micah — Son