Karla is a character appearing in Professor Layton and the Diabolical Box. Karla is found on the Molentary Express. She is located in the third car of the train. She isn't in the game for long, but she tells the player some information regarding the train.
She has brown hair and black eyes. She wears a white shirt, a red jacket, an orange dress, and blue shoes.
Karla gives Layton and Luke a single puzzle while they are on the Molentary Express. Karla gives the puzzle "The Shoe Maze".
- She is afraid of any other type of transportation besides riding on land.
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.