Cress Williams (born July 26, 1970) is an American film and television actor, best known for playing the hitman Wyatt Mathewson in Prison Break and detective Ed Williams in Close to Home. He is also known for his role as Inspector Antwon Babcock in the final season of Nash Bridges, and as D'Shawn Hardell in seasons 4 and 5 of Beverly Hills, 90210. He also had a notable role of portraying music promoter Terrence "Scooter" Williams (the love interest of Khadijah) in the Fox television sitcom Living Single. He most recently played Mayor Lavon Hayes on The CW series Hart of Dixie as well as being cast to play Black Lightning on The CW series of the same name.

Answer this question based on the passage: who plays the mayor in hart of dixie? Okie... think carefully first, then make a decision:
The important part for answering this question is: He most recently played Mayor Lavon Hayes on The CW series Hart of Dixie as well as being cast to play Black Lightning on The CW series of the same name. So, the answer is Cress Williams.