Inspector Chelmey is gruff and rather unfeeling, although he does show mild affection to his second, Barton. He also loves his wife, Amelie; proved by Barton's comment that he'd never seen a man more in love with his wife than Inspector Chelmey.

Chelmey takes pride in his job, and is definitely dedicated to being an inspector. He has demonstrated great talent in analytical thinking, although his habit of jumping to conclusions often leads to him being outdone by Professor Layton.