Blewitt wears a blue dress-like clothing, and brown shoes. Like other people in Phong Gi, he his brown hair is in the shape of a mushroom top, and he has a mustache.
Blewitt gives the following puzzles in Professor Layton and the Azran Legacy:
"Usually a fairly forthright man, Blewitt occasionally suffers bouts of shyness and hides behind his hair. He was initially wary of Layton and the others but warmed to them after they helped the chief. His fear of Amanita is less easily overcome: "She's nice as pie one minute, but she's absolutely toxic the next!""