Leader

Samuel Sterns has already appeared in the Marvel Cinematic Universe – in both The Incredible Hulk and an Avengers movie prequel comic – but he has never been seen on screen with any powers (he did briefly appear with them in the comic, but whether or not they’re considered canon is debatable).

In The Incredible Hulk, he was an ally of Bruce Banner’s, trying to aid him with his Hulk problem, but he was caught up in an assault by Emil Blonksy and ended up with some of Banner’s blood in a head wound – resulting in a mutation starting to occur.

That was a hint towards the Leader potentially appearing in the future with his telepathic powers – and most fans would still like to see that happen in a movie.

He could appear in a future Hulk movie as a solo villain or as part of a group of villains – the Intelligencia, for example (who were responsible for the creation of the Red Hulk). He could even be used in a television series if Marvel Studios don’t think he’s big enough for a movie (although seeing him trying to telepathically control the Hulk would be more of a treat).