11 Actors Were Considered to Play Leroy Jethro Gibbs on 'NCIS' Before Mark Harmon Was Cast (Including 2 Oscar Winners!)

11 Actors Were Considered to Play Leroy Jethro Gibbs on 'NCIS' Before Mark Harmon (Including 2 Oscar Winners!)

LL Cool J's Sam Hanna Returns to 'NCIS' Tonight, He Reveals Why He's Reprising the Role Once More

11 Actors Were Considered to Play Leroy Jethro Gibbs on 'NCIS' Before Mark Harmon (Including 2 Oscar Winners!)