Brian Dietzen is an American stage, television, and film actor. He is best known for his character of ‘Dr. Jimmy Palmer’ in the action police procedural television series ‘NCIS.’ A student of theatre from the ‘University of Colorado Boulder,’ Brian performed in stage productions of ‘Equus,’ and ‘Waiting for Godot.’ He was also associated with the ‘Colorado Shakespeare Festival’ for a couple of years. He featured in the television series ‘My Guide to Becoming a Rock Star’ and ‘Boston Public,’ and in the musical romantic comedy film ‘From Justin to Kelly,’ before featuring in the recurring role of ‘Dr. Jimmy Palmer’ in ‘NCIS.’ His role became part of the main cast of the popular show starting from its tenth season. It garnered Brian widespread recognition and fame. While continuing with his work on ‘NCIS,’ Brian has appeared in several other on-screen productions. These include the television movie ‘Hit Factor,’ television series ‘Perception,’ and films like ‘Purgatory House’ and ‘Nowhere to Hide.’