Rosearik Rikki Allen Simons is an actor, writer, and artist. He is most famous for being the voice of the robot in a dog suit, GIR from Invader ZIM.

As a writer, Rikki Simons is known for science fiction and fantasy novels such as Hitherto a Lion, Ranklechick and His Three Legged Cat, Super Information Hijinks: Reality Check!, The Sad Circus by the Sea, and the six volume ShutterBox fantasy series, which he co-created with Tavisha Wolfgarth-Simons.

He is also a background painter in animation, most noted for his color design on Invader ZIM. The comics and books he creates with Tavisha can be read and purchased at http://www.tavicat.com/.

Most recently, Rikki has served as a writer and colorist on Oni Press' Invader Zim comic series.

Rikki was born September 8, 1970. He lives in Los Angeles, California with his cat Pippi and his wife, Tavisha.