From murder and espionage to terrorism and stolen submarines, a team of special agents investigates any crime that has a shred of evidence connected to Navy and Marine Corps personnel, regardless of rank or position.
From Wikipedia, the free encyclopedia. Sean Harland Murray (born November 15, 1977, height 6' 1½" (1,87 m)) is an American actor. He is known for playing Timothy McGee in the CBS television drama NCIS and Danny Walden in the military drama JAG.