Johanna is the mother of one of the main characters in Pokémon Diamond and Pearl series. She is the mother of Dawn to be more specific and is also known as Ayako from the Japanese version of this Pokémon animated series.
Johanna is not your typical stay-at-home mom. She is more likely to be found at the Pokémon contest hall and will even enter one of the contests every now and then. Her Pokémon of choice is her Kangaskhan which is brown and cream in color, and can be categorized into the kangaroo family.
Once a winner of the Grand Festival, Johanna was at one time an excellent coordinator. But, she eventually does have to come home some time, to her family pet Glameow Pokémon which is in the feline family.