Stream It Or Skip It: ‘NCIS: Origins’ On CBS, About Jethro Gibbs’ First Days As An NCIS Agent admin 1 week ago USA Update Comments Off on Stream It Or Skip It: ‘NCIS: Origins’ On CBS, About Jethro Gibbs’ First Days As An NCIS Agent 1 Views Austin Stowell plays the younger Jethro Gibbs in the series, which includes Mark Harmon and his son Chris among its executive producers. Share Facebook Twitter Stumbleupon LinkedIn Pinterest