The Starhunters had planned to sell him as an "exotic lifeform" to aliens living in distant parts of the galaxy. When Jann Tosh, along with R2-D2 and C-3PO entered the Academy, Greej returned all the captured creatures to their home with the help of Coby.
Greej appeared to be Human, except he has three-fingered hands; consequently, he had been classified here as a Near-Human. He had dark blue eyes and brown hair. He wore a dark brown jump-suit with a tan vest and hat.