Cassia Orsellio from Rogue Trader is one of my favorite characters in it. Yet she reminds me a lot of a Fire Emblem Heroes character: Not (just) a Fire Emblem character but a Heroes OC. She shares the following traits with the new introductions from that mobile game:

• Is a mysterious, powerful (literal and figurative) noblewoman.
• Is humanoid but still not human in some ways.
• Has a central gimmick (in this case her warp eye).
• Has a sort of “overdesigned JRPG” style about her (looking a lot more like an eastern RPG character than the western fantasy/sci fi ones of the rest of the cast).