mark harmon

ncis

[mark harmon @markharmon04004]

@cdnabours I lost your hangout

[mark harmon @markharmon04004]

@cdnabours Follow me back

[mark harmon @markharmon04004]

@cdnabours I've been looking for you everywhere babe follow back

[The NCISverse @ncisverse]

How much do you know about real-life #NCIS? Here's what Mark Harmon has to say!

[The NCISverse @ncisverse]

#TBT to when Mark Harmon was honored with a star on the Hollywood Walk of Fame: http://t.co/pDsSsHF8Qc #NCIS

[iontv @iontv]

Happy birthday to an #NCIS original, Mark Harmon! 🥳

[Laura Navins @laura_navins]

I’ll never forget the first time I saw Mark Harmon and David McCallum together on Jag where #NCIS got its start. They were an incredible duo to watch. It will definitely be weird not seeing Ducky when Season 21 comes. #RIPDavidMcCallum @ncisverse

[Famous Birthdays @FamousBirthdays]

Mark Harmon from NCIS celebrates his 66th Birthday today!