These were the images and character ID's my mate Sourmilk78 provided to me for the benefit of the HKMDB, so many thanks to him.
Chiang Ching
https://hkmdb.com/db/people/view.mhtml?id=3332&display_set=eng
--- Sao The's mother

Wu Chia-chi
https://hkmdb.com/db/people/view.mhtml?id=3933&display_set=eng
--- Dr. Wu Qingjun, Sao The's father (Dr Wu Tien Jing)

Nomura Mitsunori
https://hkmdb.com/db/people/view.mhtml?id=137884&display_set=eng
--- Sao The (Monster Prince) [MONSTER PRINCE footage]

Lin Lin
https://hkmdb.com/db/people/view.mhtml?id=13555&display_set=eng
--- Ms. Li

Tai Liang
https://hkmdb.com/db/people/view.mhtml?id=14635&display_set=eng
--- Dr. Li (Dr. Lie)