Sam Hanna is a fictional character from the television series NCIS: Los Angeles. He is portrayed by actor LL Cool J and serves as a Senior Agent in the Office of Special Projects. Sam is known for his strong sense of loyalty, dedication to his team, and expertise in various fields, including hand-to-hand combat and intelligence gathering. In addition to his role as an agent, Sam is also a former Navy SEAL, which contributes to his skills and tactical knowledge. Throughout the series, he often collaborates with his partner, G Callen, and other team members to solve complex cases and protect national security.