Mymble is Little My’s sister and Snufkin’s half sister. Their mother is also called Mymble, but being an amiable and helpful big sister, Mymble soon took responsibility for looking after all her younger siblings.
Despite having the same parents and similar looks, Mymble and Little My differ in many ways. Mymble is much calmer than Little My and often dreams of finding the love of her life. She easily gets infatuated and has romantic daydreams about policemen in particular.
Mymble often wears a pink dress and does her hair in the same kind of bun as Little My. She is first mentioned in the book, Moominpappa’s Memoirs.