First appearance: X-Men #4 (1964)

He may be Marvel’s answer to the Flash, but the super-fast Quicksilver is nowhere near as memorable as the Scarlet Speedster. As a one-time villain of the X-Men, not to mention a member of the Avengers, Pietro Maximoff is always in the middle of Marvel’s biggest crossover storylines, but he very rarely adds anything to them.

All Quicksilver does is run really fast and stand around with a smug expression on his face. Worst of all, the Ultimate version of the character had an incestuous relationship with his sister, the Scarlet Witch. Try to imagine that ever working on the big screen.