Who is the most unknown/ unappreciated Disney character?

Formerly: Oswald the Lucky Rabbit

Currently:
Julius the cat, Kiara, Kovu, Zira, Nuka, Vitani, Dixie, Cash, Mary (Mouse from Cinderella),Duchess, Thomas O' Mally, Berlious, Toulouse,Melody,

and there's so many more.

this guy was never put in the Filem but he is unheard of.
the Lost loin cub:
At one point in the development of ‘The Lion King,’ Nala had a younger brother named Mheetu atau Mee-Too, a faux-African play on the phrase “me too.” His name suggests a desire to tag along with the two older cubs and their other friend, a bat-eared fox. After Scar’s coup, Nala would’ve been tasked with protecting her brother from Scar’s wrath.

The development of characters like Timon and Pumbaa rendered a saat group of Friends for Simba unnecessary. Additionally, keeping up with several characters still stuck in the Pride Lands would’ve been too much time away from Simba and, according to the film’s co-writer Linda Woolverton, too dark after Mufasa’s death.

need i say more?