Mallow is a Trial Captain in Pokémon Sun & Moon.
She was voiced by Reina Ueda in the Japanese version (who also voiced Snowy) and Jessica Paquet in the English version.
Mallow is a girl with tanned skin, who has a pink flower in her green hair and has green eyes. She wears a pink sleeveless shirt with light teal overalls. She wears light teal denim shorts and green shoes with small dark green bows. She also has a golden clover-shaped badge on her waist. Later, she receives a green Z-Ring that she wears on her left wrist.
In the anime version, Mallow is a student of the Pokémon School and Ash Ketchum's new friend and classmate during Pokémon the Series: Sun & Moon.
- Her Japanese Voice Actress, Reina Ueda also voices Kisa Sohma from Remake of Fruits Basket series and Mikan Akemi from My Monster Secret.
- She is the only one of Ash's classmates who has a deceased family relative.
- She is the last of Ash's classmates to obtain a Z-Ring in Sun and Moon series.