NCIS and its spin-offs NCIS: Hawai'i and NCIS: Los Angeles – which has recently been canceled – have amassed a cult following over the years, and viewers are hooked on the gripping storylines and love lives of the characters. 

But when the cameras aren't rolling, many of the shows' beloved stars, including Eric Christian Olsen, Mark Harmon, and Vanessa Lachey, head home to their real-life partners, many of whom are also in the public eye. Meet them belowIn NCIS: Los Angeles, Eric Christian Olsen's character Marty Deeks is married to Kensi Blye, played by Daniela Ruah. But in real life, the actor has been married to actress Sarah Wright since 2012.

The couple met in 2006 on the set of the Fox sitcom The Loop. After dating for five years, the two got engaged during a vacation in Mexico in 2011, later tying the knot in 2012 in Wyoming's idyllic Jackson Hole.

Sarah has starred in hit movies like The House Bunny with Anna Faris – in which she played a sorority mean girl – and 2017's American Made, in which she starred opposite Tom Cruise.LL Cool J has been married for over 25 years

LL Cool J has starred in NCIS: Los Angeles as Sam Hanna since the early noughties. Away from the cameras, he has been happily married to his wife Simone Smith since 1995.

In 2004, Simone was diagnosed with stage 3 chondrosarcoma after discovering a knot in her leg, and LL was by her side throughout her entire recovery. After a 15-hour surgery and over a two-year recovery process where she had to learn to walk again, Simone has been cancer-free for 15 years.

Speaking of their long-lasting marriage, Simone once told Oprah Winfrey the secret to their success. She said: "Putting God first, we both come from a spiritual background. And compromise, a lot of compromise. Picking your battles; respecting each other."