Mark Harmon, widely recognized for his role as Leroy Jethro Gibbs on NCIS, has quietly built an impressive fortune that reportedly left even his family surprised. With an estimated net worth of around $120 million, Harmon’s financial success stems from decades in the entertainment industry—not just as an actor, but also as a producer and director.

His work on NCIS was especially lucrative. At the peak of his role, Harmon was earning over $500,000 per episode, which added up to more than $12 million per season. In addition to acting, his executive producer credits and involvement in franchise spinoffs significantly boosted his earnings.

Outside of NCIS, Harmon’s career includes acclaimed roles in shows like St. Elsewhere, Chicago Hope, and The West Wing, as well as film appearances in titles such as Freaky Friday and Chasing Liberty. His ability to stay relevant in Hollywood for decades has cemented his place as one of the industry’s most dependable and respected stars.

Despite his wealth, Harmon remains humble and private. Married to actress Pam Dawber since 1987, the couple has raised two sons largely out of the spotlight. While Harmon has stepped back from the limelight in recent years, his legacy—and his unexpected financial impact—continues to be felt in Hollywood.