Steven Robert Weber (born March 4, 1961) is an American actor. He is best known for his role as Brian Hackett on the television show Wings which aired from April 1990 to May 1997 on NBC and as Sam Blue in Once and Again. He used to recur on iZombie in the role of Vaughn du Clark. He plays Mayor Douglas Hamilton on NCIS: New Orleans in a recurring role.

Who plays mayor hamilton on ncis new orleans? Okie... think carefully first, then make a decision:
To answer the question, consider the following: He plays Mayor Douglas Hamilton on NCIS: New Orleans in a recurring role. So, the answer is Steven Robert Weber.