Sean Thomas Harmon is the firstborn of Mark Harmon and Pam Dawber. Having inherited his parents’ acting skills, he made a debut in an episode of CSI: NY in 2012 and proceeded with having roles in Lauren, The Ultimate Evil, Major Crimes and Haven: Origins television series along with appearing in The Fits, Hold On and Thicker movies. Sean also played a young version of his father’s character Leroy Jethro Gibbs in several episodes of NCIS.
Additionally, Harmon served as a stunt coordinator for several projects and performed the stunts himself in Dumb And Dumber To and Alone films. And in 2012, he co-wrote, directed and produced Catholic Schoolgirl Chainsaw Showdown short film.
As to his love life, Sean is in a relationship with social media influencer Courtney Prather. He is active on Instagram as well.
A curious fact: Sean loves surfing and kick-boxing.