Special Agent Gibbs is a fictional character from the television series NCIS, which focuses on a team of special agents investigating crimes related to the U.S. Navy and Marine Corps. He is portrayed by actor Mark Harmon and is known for his strong leadership skills, dedication to his team, and a no-nonsense approach to solving cases. Gibbs has a complex background, including a military history and personal losses that shape his character. He is often seen as a mentor to younger agents, such as Tony DiNozzo and Ziva David, guiding them through both professional and personal challenges while maintaining a tough exterior.