Biography: Rosearik Rikki Allen Simons is an American voice actor, writer, graphic novelist, and artist, best known as the voice of GIR in the Nickelodeon animated series, Invader Zim. Simons also co-created and wrote the Robotech: Clone comic series. In 2017, Simons voiced his first non-Invader Zim role as the Red Trollblin and some incidental Kotassian characters in the Cartoon Network series, Mighty Magiswords created by Jhonen Vasquez fan, Kyle A. Carrozza. [wikipedia]