The crime series Navy CIS has been flickering across home screens since 2003. A new case is solved every week. With 20 seasons broadcast, we come up with an impressive number of 457 (!) episodes. Up until season 19, Mark Harmon acted as the main cast member. He played Special Agent Leroy Jethro Gibbs.
This information should not surprise any fan of the series. Harmon’s face is completely connected to Navy CIS. Far less well known, however, is the fact that his eldest son, Sean Harmon, was a small supporting role in which Procedural plays – and has been for 15 years. He made his first appearance in 2008.
NCIS Mystery: Sean Harmon plays his father’s young version in the crime series
Sean Harmon has appeared in Navy CIS since Season 6 as young Leroy Jethro Gibbs on. These are performances that take place in the course of flashback sequences. So far, there are seven NCIS episodes in Harmon’s filmography.
All NCIS episodes with Sean Harmon:
CBS
Sean Harmon in NCIS
Away from his appearances in the NCIS universe, Sean Harmon is more active behind the camera. He specializes in the stunt area. His filmography includes entries as a stunt coordinator, stunt double and as a stuntman. He was involved in the series Breakwater (2022) and the thriller The Other Side of Bliss (2023).
NCIS Sequel: When Does Navy CIS Season 21 Start?
After 20 seasons of Navy CIS, it’s far from over. Since February, we’ve known that the popular crime series will return for another round. However, when the 21st season starts is not yet known. Due to the scriptwriters’ strike in Hollywood, production could be significantly delayed.
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