That depends on the game - how it’s titled, what the player expects, etc. If the game is based around cartoons then I’d expect to be a cartoon character. That would also open the possibility for unlockable characters that the player could work towards.
Take the approach of giving them a choice maybe. Something that Dued1s Survive the Killer does. Each Character could have a ability and the Players Abilities could be upgraded maybe.You can give them a choice every round aswell but it would be too annoying.
GL