5. Carnage

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Carnage was created when serial killer Cletus Kasady merged with the offspring of the alien symbiote Venom during a prison breakout. However, as he lacks Eddie Brock’s moral compass (as twisted as it may be), Carnage is a truly evil and frightening murderer who at one point went on a rampage through New York City in an event known as “Maximum Carnage”.

While this villain would make a great foe for Spider-Man in the near future, Carnage could also star as the main bad guy in Venom’s rumoured spin-off, before receiving one of his own. If that were to happen, it would be sensible to make a police officer – Jean DeWolff? – the lead character as they attempt to track down the killer, thereby making this a unique crime thriller!