CBS Cares TV commercial, "1 Million Care Packages to Our Troops," for Operation Gratitude and operationgratitude.com.
1 Portrayal |
1 Interview |
10 Articles |
4 Pictorials |
10 Magazine Cover Photos |
6' (1.83 m)
Did You Know?
[on saving 2 teenage boys in 1996] None of that happens without Pam walking up the street and investigating it further. I don't see it as any thought process. Either you do or you don't. If the car blows up and kills me and the kids in the car, then you'd be doing this interview with my wife about how stupid it was.
Mark studied American Sign Language for his various television roles with The Sign Company.
Plays Special Agent Jethro Gibbs on NCIS and other shows set within the franshise