Board Thread:General Discussion/@comment-25034020-20191022161652/@comment-43281069-20191225170728

Back on topic the main Healin Good site is (partially) up:

https://www.asahi.co.jp/precure/healingood/character/curegrace.html

Cure Grace will be voiced by Aoi Yuki (Tsuyu in MHA, the titular character in Madoka Magica, and many others). Not sure about the other two though.