Sinistar is an arcade game released by Williams in 1982. It belongs to a class of video games from the 1980s called "twitch games". Other "twitch games" include Tempest, Defender, and Robotron: 2084. Sinistar was developed by RJ Mical, Sam Dicker, Jack Haeger, and Noah Falstein. Sinistar's voice was supplied by John Doremus.
Source: Wikipedia, "Sinistar," available under the CC-BY-SA License.