|Appearances|| Unwound Future|
|Relations|| Inspector Grosky|
Colby wears a purple suit with a white shirt underneath and a purple policeman's hat. He is an incredibly long chin.
Colby gives the following puzzles in Professor Layton and the Unwound Future:
"Colby is the constable who works in the reception at Scotland Yard and is a great fan of Layton's. He does his best at his job but is a little tired of being stuck at the station. His chin gets even longer when he laughs!"
"A Scotland yard police constable who works in reception, Colby loves puzzles and has a strong sense of justice. Unfortunately, he is rarely allowed into the field."