I did a cheeky lookup on his ethnic makeup and couldn't believe he was half Asian.

The fat in the eyelid makes the characteristic Asian eye, and it's a dominant trait. On top of that if his non-Asian side has a shallow brow the eye character is more pronounced. It's always these two features that make a half-Asian look more Asian or not.

It's very interesting to see someone who's recessive trait is stronger in this case.