Harhall is an Beanish character that wears glasses. He also wears a camera around his neck.
Needing a Beanstar piece, Mario and Luigi follow the map to Harhall's Studio where they notice people leaving complaining about drinking too much water. Harhall then notices Mario and Luigi and agrees to hand over the Beanstar piece if they can design three different clothing designs for him. The Mario Bros. successfully do so and Harhall hands over the Beanstar piece.
- Harhall's name may come from the word "harsh" which describes his aggressive personality and how he treats his employees by always yelling at them.
- Harhall has been mistaken by players as being female.