Ty Christian Harmon, 31. Mark and Dawber welcomed their second child, Ty Christian Harmon, in Los Angeles on June 25, 1992. Unlike his family, ...

Mark Harmon and Pam Dawber have two kids — Ty Christian Harmon and Sean Harmon, and both work in showbiz, yet one is more of an actor, while the other’s work happens behind-the-scenes.

The “sons” Harmon is referring to are Sean Harmon, born in 1988, and Ty Christian Harmon, born in 1992. Both now work in the film industry, Sean is an actor like his parents and Ty Christian ...

Mark and Pam have two sons, Sean Thomas Harmon, 32 (He's played a young Gibbs in several NCIS episodes!), and Ty Christian Harmon, 28. In an interview with ET in 2016, ...

Dawber and Harmon have two sons, Sean Thomas Harmon, 34 who has played a young Gibbs in several NCIS episodes, and Ty Christian Harmon, 30.

One of Mark Harmon's sons appeared alongside him on NCIS Ron Wolfson/WireImage Elyse Knox, Mark Harmon, Pam Dawber and son Sean Harmon during 'Jesus Christ Superstar' Los Angeles Performance in August ...