Played by: Sean Harmon
TV show: NCIS
People also ask
Why isn't Mark Harmon's son playing young Gibbs?
Who plays Gibbs when he was young?
Who will play young Gibbs in NCIS: Origins?
Why was Mark Harmon replaced on NCIS?
Sean Harmon (born April 25, 1988) is an American actor and also the son of NCIS series regular Mark Harmon with Sean playing young Leroy Jethro Gibbs.