NOS-4-A2 is a villain on Buzz Lightyear of Star Command. His name is a play on the word "nosferatu." He is an energy vampire, a robot that gets energy by taking it from other machines. He is able to control any machine that he bites. Created by Zurg, NOS-4-A2 was sent to destroy Star Command by taking control of the station. He last appeared in episode 24 of season three of Buzz Lightyear of Star Command called An Evil Position.