Or maybe!!!!!

This is just an idea up for discussion. 

A:Cast done. No additions unless the circumstances allow for it. We go with 8 people and a 1 character limit.

or

B:Everyone is allowed to make additional characters(with a discussed limit) BUT character death becomes a possibility to even things out.

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I think having 1 character per person will over all be easier and more casual, as the tag suggests. It'll allow everyone to focus more on THAT character, instead of having to think of actions for multiple people, potentially getting writers block(the death of most roleplays), or causing confusion. Plus some people don't like the idea of their character being killed. Not to mention we would have to postpone the IC until everyone gets their extra character sheets in order.

However, I also think, if done properly on both the sides of the gm(me) and everyone participating, the threat of death at any given moment adds a bit of real suspense and horror. Making choices for your character can be life or death. (Maybe...don't shake sans' hand...) It's risky, but could have an interesting outcome.