Kyo Sohma from "Fruits Basket" he wears a bracelet and when it taken off he will turn into a monster ... beside that he is cursed por the spirit of cat from the zodiac he transforms into a cat if an opposite gender hugs him ...(when he was a kiddo untill he has grown up >.> ) idk if we can count him as one!!!
Yakumo from Shinrie Tantiei (Psychic Detective Yakumo) was pretty darn cute as a child
He's a pretty dark character because he can see ghost with his red eye and lots of people fear him. His own mother even tries to kill him.... but you'll have to see the anime to find out how he eventually turns out ;)
lost form of Toki Fujiwara (Code:Breaker anime) as kid is really cute. x3 He's kinda evil, he normally kills bad people as he works under a secret organization. He has a special power of magnetism. Though he regrets that his elder sister died because of him in his childhood days, he joins the org. to become más powerful so that he can take revenge from the murderer of his sister. Despite all these things, he's a nice guy and a bit flirty-type. He protects his friends no matter what the situation is. When he loses his real form, he loves to have fun around with his comrades. :P
Evangeline from Negima!? Evangeline is a vampire as well as a mage who became trapped in her child form due to this magical spell placed upon her as punishment and at the same time prevention from utilizing her full, maximum vampire and mage powers and strength por Nagi Springfield, another mage and the father of the main protagonist of the series Negi Springfield
Mitsukuni Haninozuka from Ouran High School Host Club o just calle him " honey-senpai " . He is a cake-loving, childish senior with an elementary school appearance . Also , he considerd as ' boy-lolita ' .