GIR (Garbage-issue Information Retrieval Unit) (voiced by Rosearik "Rikki" Simons) is a malfunctioning and dimwitted robot SIR (Standard-issue Information Retrieval) Unit who was assigned to Zim. He was built by the Almighty Tallest out of SIR unit remains from a trash can and rubbish they found in their pockets and was subsequently passed off to Zim as a "top-secret" and "advanced model". He disguises himself in public by wearing a green dog suit, which fools most humans, despite looking and acting nothing like an “Earth dog”. Out of the pair, GIR has more interaction with Earth's social and cultural life-style. His personality is cheerful, friendly, and easy-going. GIR also has a love for Earth that his master does not share. Throughout the series, GIR has demonstrated talents such as cooking and dancing.