Sean Murray has played the role of "Timothy McGee" on NCIS since 2003. Over 15 years have passed since the first appearance of the actor in the famous series. But how did his character come about?
NCIS producer Frank Cardea actually had quite different plans for "McGee" at the beginning, as he revealed in an interview. "McGee" was in fact never meant to be a main character, but why? Watch this video above to find out!