James Porter, known by his codename Smoke, is a fictional character from Tom Clancy's Rainbow Six series. He is a Defending Operator known for his expertise in chemical warfare and his signature gadget, the Remote Gas Grenade. Smoke is characterized by his calm demeanor and strategic thinking, which make him a crucial asset in close-quarters combat and area denial. His background as a member of the British SAS gives him a unique perspective on tactical operations. Smoke's role in the series is vital, as he excels in creating controlled environments that disrupt enemy advances and protect key objectives.