Mark Harmon & Pam Dawber – 34 Years

Mark Harmon’s star was so bright at the start of his career that his charm and charisma was even recognized by People magazine in 1986. Not much has changed, although the characters he plays now rely more on brains than they do on smoldering good looks.

Not that his wife, Pam Dawber, doesn’t mind an even balance of the two. The NCIS star and his fellow actress wife married in March 1987 and have two children together. Dawber’s claim to fame stemmed from her time in the ’70s and ’80s sitcoms like Mork and Mindy, in which she was Mindy and My Sister Sam.