Cobra (sometimes referred to as Cobra Command) is a fictional terrorist organization and the nemesis of the G.I. Joe Team in the Hasbro action figure toyline G.I. Joe: A Real American Hero and G.I. Joe: Sigma 6, as well as in related media. Cobra was first introduced during the launch of the G.I. Joe: A Real American Hero toyline in mid-1982. The toyline was accompanied by a Marvel Comics series, written by Larry Hama, and an animated television series by Sunbow and Marvel Productions. However, the origin and portrayal of Cobra has differed in each of them. Marvel Comics invented the Cobra concept, with the name having been proposed by Archie Goodwin. When Marvel first proposed the concept, Hasbro was reluctant to make toys of the villains for fear that they would not sell. According to Jim Shooter, "later ... villains became 40% of their volume." Organization High command All members of the Cobra organization are portrayed as fighting against G.I. Joe, however, there are several internal power struggles within the group. Cobra Commander - The leader and founder of the Cobra organization. His face is mostly hidden, either with a hood, with only his eyes visible, or with a featureless, high-tech battle helmet. In the Sunbow cartoon, this concealment was said to be used in order to hide his inhuman disfigurement, but it was discovered later that it was actually done to maintain the secret of his civilian identity – he was revealed to be an agent from a race of reptilian serpent people known as "Cobra-La". In the comic, he is regarded as the most dangerous man on Earth because of the extent of his ability to attract followers. Only the Baroness and Destro have seen his face. Serpentor - The Cobra Emperor, created through cloning research done by Doctor Mindbender. The process used DNA extracted from the remains of ruthless military leaders, including Julius Caesar, Napoleon Bonaparte, Attila the Hun, Vlad Tepes (cartoon only), Alexander the Great, Hannibal, and Genghis Khan. In the Sunbow TV series, G.I. Joe member Sgt. Slaughter. In the comics, Storm Shadow is the tenth and only live source of DNA instead of Sgt. Slaughter. In addition to his genetic disposition, an early experiment also gave him access to the brain patterns of G.I. Joe HALO jumper Ripcord, allowing him to use G.I. Joe's strategies against them. Serpentor was killed by Zartan, only