Grelle is an individual "covered in red." Grelle has long dark-red hair, shark-like teeth, and red-framed glasses accessorized with a chain with skulls. Like other Grim Reapers, Grelle has chartreuse phosphorescent eyes. Grelle's typical attire consists of a vest; gloves; a red-and white-striped bow around her neck; and red and black 4.33-inch (11-cm)[2] high-heeled ankle boots. Grelle also sports a red coat, She has red Cat ears and a red cat tail they match her hair.