Joanie is a young female character who appears in the game Professor Layton and the Diabolical Box. She is seen outside of the Antique Shop throughout the player's time in Folsense. She has a sweet tooth like most girls and is fearless towards anyone who approaches her.
Joanie wears a pink skirt, lilac sweater and red shoes.
Joanie gives the following puzzles in Professor Layton and the Diabolical Box:
"Joanie's a sweet little girl with a penchant for being straight with people. Her fearless attitude has made her very popular with the tougher crowd up in the northeast part of town. She loves all things cute."