In my experience, the cast members "match" their animated counterparts. But, I don't do too many meets with "face" characters.
We recently saw Rapunzel and Cinderella at Shanghai and they were both Caucasian (with wigs, contact lenses and make-up to resemble the characters more). I only spoke to Rapunzel and she spoke English. We met Captain America and he was Caucasian and spoke English. We met Spider-Man twice (as our first PhotoPass photos never appeared) and the first time I'm certain he was Chinese, but the second time he may have been Caucasian (because he was quite tall and spoke English with some kind of American accent, but he could have just learnt to speak English from an American tutor).
I can't recall meeting any Princesses in Tokyo or Hong Kong, but I'm sure it would be the same. I did meet Captain Jack in Tokyo and he was Caucasian and spoke English. I may be misremembering, but I think I "saw" Mary Poppins in Tokyo when quickly walking through Main Street and she was Caucasian, but I could be getting my parks and sightings mixed up.