Mash is of average height and has a muscular build. He has black bowl-cut hair and pale skin with a slight tan. A fake mark made by Brad Coleman was placed over his left cheek. When at Easton, he wears the standard school uniform of a white shirt, black trousers, red tie, brown shoes and black cloak. When training, he often wears white shorts, and black under armor. He is often seen wearing a stoic and blank expression on his face.