Matt Howl is a tall, broad-shouldered, black hair and brown eyes individual with an introverted and laid-back demeanor. He's an Animagus, able to transform into a small, chubby black puppy with a white belly and white toes. However, his transformations aren't always perfect, occasionally leaving him with puppy-like attributes in human form. Introverted, unflappable, and unemotional, he leads a laid-back life.