Oh, and incidentally, as a resident of Great Britain:
What, were there no British-Asian actors available to play a half-British/half-Japanese character?! Even if it ended up being an "eh, close enough" British-Chinese or similar? The guy's as much Irish, Portugese, and Hawai'ian as he is Chinese, and although both parents came from here, he was raised Canadian and speaks decidedly Uhmerkan.
What, were there no British-Asian actors available to play a half-British/half-Japanese character?! Even if it ended up being an "eh, close enough" British-Chinese or similar? The guy's as much Irish, Portugese, and Hawai'ian as he is Chinese, and although both parents came from here, he was raised Canadian and speaks decidedly Uhmerkan.