Charlotte Custard is the sixth daughter and 16th child of the Charlotte Family and the middle triplet sister of Cracker and Angel.[5] She is also an officer of the Big Mom Pirates.[4] Despite her age, Custard is a slim, young-looking woman who has fair skin, brown eyes, short violet hair adorned with a flower. She wears a purple-pink bodysuit with matching elbow-length gloves and belt around her waist. She also wears a large, fluffy light pink cape with pink polka dots around her shoulders.[2] Nothing is known about Custard's personality. However, since she took part in Big Mom's plan to assassinate the Vinsmoke Family and led a squad after the Fire Tank Pirates, she can be considered very loyal to her family and crew.[3] As an officer of the Big Mom Pirates, Custard has authority over lower-ranking members of her crew, being chosen to lead a squad that pursued the Fire Tank Pirates.[3]

Custard possesses a strong will, being able to withstand a burst of Big Mom's Haoshoku Haki and remain conscious from her loud scream.[6] Custard is shown to wield a long sword.[3]

In the anime, Custard wields a Walker to stop Luffy from showing Carmel's picture to Linlin.[7]