He is voiced by Satomi Moriya.
Given his color theme and items, Daniel likes the color blue and stars. Besides William, he is another baby who sometimes gets fussy but is mostly neutral.
Daniel seems to be American like Emma, given his look, but he's actually from Russia. He has blue eyes and blonde hair, like she does. But his hair is much more yellow and short. His eyebrows are brown. Often Daniel can be seen with his mouth wide open.
Daniel wears dark blue pajamas with a yellow shooting star on them.