Knuckle is definitely one of my favourite characters in the series. Love how he starts taking care of dog in the park.
Also the first appearance of Shaiapouf, my favourite of the Royal Guards. I remember being really disappointing the first time I saw him, primarily because he looks like some fairy from a shoujo manga. Pitou does have the more striking design. But Pouf does become more interesting later on.
This arc really does have some amazing characters.