
Quick answer — Yuu Okano voices Navre Sprout in The Magical Revolution of the Reincarnated Princess and the Genius Young Lady, Marx Pearlston in Vermeil in Gold.
Yuu Okano voices Navre Sprout (The Magical Revolution of the Reincarnated Princess and the Genius Young Lady), Marx Pearlston (Vermeil in Gold).
Navre Sprout is voiced in Japanese by Yuu Okano.