EpicDuel characters cannot be deleted. However, you can create up to 6 characters and customize their class, items, etc., so the options are endless!

HeroSmash characters can be deleted. Login to your Artix Account at HeroSmash's site and there is an option to delete your character at the login screen to the bottom left. You can only have 3 characters at a time. If you do choose to delete a character, that character is gone forever, so choose wisely!

OverSoul characters cannot be deleted.