I hope nobody votes for Marmalade, because... well 1 he's just a lot more entertaining- and second, the twist being obvious is part of the story, in The Bad Guys. It's not meant to blow your mind, unlike Hans.

Didn’t the trailers spoil Chelsea?

This is true, but I haven't watched the film yet, so I can't really judge

Hans took me completely by surprise.

Chelsea you already knew was the villain cause of the trailer

Ditto.

The last one is my favorite =^^=