TV Fanatic Works Better with Prime Instant Video
Mark Harmon (Leroy Jethro Gibbs) - NCIS NCIS Cast: Before They Were Stars
Mark Harmon was a star long before he signed up for NCIS. Die hard fans might remember him from the primetime soap Flamingo Road, Dr. Caldwell for St. Elsewhere, or the third wheel in the Dave and Maddie triangle on Moonlighting. However, we're still mourning his untimely death as Agent Simon Donovan, CJ's romantic interest on The West Wing.