Grish, otherwise known as Grish the Beautiful, is Nick's Planet Sheen counterpart and Princess Oom's two-headed ex-boyfriend. Each of Grish's heads has a mind of their own. Sheen often tries to get him and Oom back togehter, but he keeps failing, no matter how hard he tries. Even when Sheen tells Grish that he doesn't want Oom, he still threatens to pound Sheen for rejecting the woman he loves.