I'm fond of Shinon's voice in his RD appearance, his lines were just so natural in comparison to Rolf and Mist in the same cutscene, I hope they consider bringing his VA back for heroes like they did with Mia's.
Norne's dialogue in Heroes is too stilted for it to sit comfortably with me. It's cute, but her "Aw, Geez," is where it's most noticeable.