Here are some key details about him:
* Full Name: Mark Harmon
* Born: September 2, 1951, in Burbank, California, USA
* Notable Roles:
* Leroy Jethro Gibbs in NCIS (2003-2021)
* Tom "T.C." Calabash in St. Elsewhere (1982-1988)
* Rick Dalton in Once Upon a Time in Hollywood (2019)
* Career: Harmon has had a successful acting career spanning over 40 years, appearing in films, television shows, and theatrical productions. He is known for his charming and rugged good looks, and his ability to portray both strong and sensitive characters.
* Family: He is married to actress Pam Dawber, and they have three sons.
* Awards and Recognition: He has received numerous awards and nominations throughout his career, including a Primetime Emmy Award nomination for his role in NCIS.
Mark Harmon remains a popular figure in Hollywood, and his work continues to be enjoyed by audiences worldwide.