Actor Colin Walker is creating a creditable career in Hollywood by working steadily back where he first began -- New Orleans. Colin recently returned as FBI Special Agent James Collington on the third season of “Treme,” HBO’s gritty look at the Big Easy, and he portrays John Ehrlichman, real-life Counsel and Assistant to the President for Domestic Affairs, in the Lee Daniels’ star-studded historical feature, “The Butler,” which was filmed in New Orleans.

Colin first began his acting career in his hometown of New Orleans, Louisiana and then made his way to Los Angeles via Boston,...