Mark Harmon, known for his role as Leroy Jethro Gibbs in the long-running NCIS series, will make an appearance in the premiere episode of the NCIS prequel, NCIS: Origins. The spin-off is set to debut on CBS and Paramount+ on September 20.
By admin
Mark Harmon, known for his role as Leroy Jethro Gibbs in the long-running NCIS series, will make an appearance in the premiere episode of the NCIS prequel, NCIS: Origins. The spin-off is set to debut on CBS and Paramount+ on September 20.