If you choose to voice act both Flowey and Asriel, there'd be a small chance I'll cast you for both roles but your voice still has to be different for these 2 characters. The last line I put is actually when he's in the God of Hyperdeath form. So... I'll give the role of Asriel (both child and Hyperdeath forms) to the person who gets it but that particular person is gonna have to edit his/her voice to sound sinister (obviously) but also a grown man as well