Mark Harmon, who played Leroy Gibbs in NCIS for 18 seasons, has a net worth of $120M. He earned $525,000 per episode and was an executive producer for many episodes, which contributed to his fortune. He and his wife, actress Pam Dawber, have a net worth of over $10M and own properties such as a $15M home in Brentwood and a hilltop home in Malibu worth over $10M. Pam's net worth is $10M, and she is best known for her role in Mork & Mindy. After giving up acting full-time to spend more time with her children, Pam made a guest appearance on NCIS in 2021.