Sam Fisher is a fictional character and the protagonist of the Splinter Cell video game series created by Tom Clancy. He is a highly skilled operative working for a secretive government agency known as Third Echelon. Fisher is known for his expertise in stealth, espionage, and hand-to-hand combat, often using advanced technology and gadgets to complete his missions. Throughout the series, Sam Fisher is depicted as a former Navy SEAL who becomes a field agent. His character is characterized by a strong sense of duty and moral complexity, often facing difficult choices in the line of duty. The games emphasize tactical gameplay and strategic planning, showcasing Fisher's abilities in various high-stakes scenarios.