Karla is a character who appears on the Molentary Express in the third car of the train. Although only a minor character, Karla enjoys the high life and tells the team valuable information about the train.
Karla wears a white shirt, a red jacket, an orange dress, and blue shoes.
Karla gives the following puzzles in Professor Layton and the Diabolical Box:
"Karla is a wealthy woman with a burning desire to see every inch of the globe. Unfortunately, she's also deathly afraid of flying and plastic cutlery, which is why she only travels by luxury train."