Sync Sound?

Was everyone in sync sound in their natural languages (aka dialects)?

It seemed that Hsu Qi and Zhao Wei were in sync sound in Mandarin. The Cantonese speakers- Karen Mok and her sidekick - were in sync sound in Cantonese.

If true, it was a pleasure, especially to hear Hsu Qi and Zhao Wei's real voices. It was a pain to keep going back to the language menu, but worth it. That's what we get for being Chinese. The Korean guy must have been dubbed unless he spoke one of the Chinese languages.