NOS-4-A2 is a villain from Buzz Lightyear of Star Command. He is a robotic energy vampire created by Emperor Zurg that can bend other machines, including other robots, to his evil will. He also transformed Ty Parsec into the Wirewolf. His name is a play on "Nosferatu", which is another word for vampire and the 1922 silent horror film of the same name.
- If one were to combine him and Emperor Zurg, the result would look very similar to Swayzak from Toonami, the Japanese dub voice of whom was provided by Ayumi Kida, who has done voice work for Disney.
- He is the only villain of the TV-series to permanently die as well on-screen.