Prince Pearce

Prince Pearce Toadstool (Prince Haru in Japanese version) is the prince of the neighbouring Mushroom Kingdom and the Sister and male counterpart of Princess Peach. And in the anime film 1986 he appears first and turned into a dog named Kibidango the spell castes by Bowser. And in the end of the film he was returned in this human form by the necklaces matched by peach's pendant.