Arnold Schwarzenegger as Mr. Freeze
This one can be hard to discern from whether casting was terrible or if Mr. Freeze is just a bad villain to begin with. That said, it can be argued that Mr. Freeze is a complex and interesting character who at his core is a brilliant scientist driven mad by a dying wife and a terrible condition he must live with.
He is intelligent and slowly driven mad. The character deserves subtlety, which I think we can all say isn’t exactly Schwarzenegger’s strong suit. The most painful thing about Batman & Robin (just kidding, there’s more to come from that movie on this list) is the seemingly endless amount of puns given to Mr. Freeze.
Schwarzenegger, unfortunately, lacks any sort of comedic timing making him perhaps one of the worst comic book movie castings on this list as a whole.
