Marvel Studios' 2018 blockbuster hit "Black Panther" was a monumental success for not only Marvel but black representation on-screen. Nearly every aspect of the film was praised from its all-star cast to costumes to special effects. However, one of if not the main discussing point among moviegoers was arguably Michael B. Jordan as the villain Erik Killmonger. Jordan elevated the role of a D-List comic villain to icon status.

With a sequel in development, the next baddie for T'Challa has some big shoes to fill. Luckily, there are five great choices that are just as interesting and dynamic, even more so than Killmonger.

5. Namor the Submariner

Namor a.k.a. the original Aquaman is a character that fans of the Marvel Universe have been clamoring to see make an appearance on the big screen for years. Holding the title of Marvel's first comic character, Namor, like Black Panther, is a king and leader of his own isolated kingdom albeit underwater.

Namor is not a black and white villain with no redeeming qualities nor is he an upstanding citizen; he sees it as his duty to protect his people. If the surface world comes into conflict with his mission through means of pollution or expansion, unlike T'Challa and more in tone with Killmonger, Namor will lash out to get his point across as opposed to making peace.

In Namor's sense, lashing out means sending giant whales and underwater armies to destroy New York City. Bad for the heroes, but great for the people who want a compelling villain who can level cities and kingdoms with oceans.

4. Achebe

If Killmonger was a physical threat for "Black Panther" in the first film, then Achebe is the one who pulls the strings and tears down T'Challa emotionally. Introduced as a Ghudazan farmer who sold his soul to the literal Marvel devil Mephisto after being left for dead by rebels he helped to save, Achebe is a very serious threat.

Through means of a Wakanda-established African refugee camp, Achebe is able to put the odds in his favor and take over Wakanda for a time. Granted, T'Challa being overthrown as king again could call into question his strength as a leader. But, on the other hand, it would make T'Challa's decision at the end of the first film a serious misfire that could send his character on a darker road once again.

With Wakanda opening its doors to outsiders at the conclusion of the first film as well as setting up outreach centers all around the globe, it would only be logical for Achebe to turn up in the sequel.

3. Moses Magnum

One of the biggest developments heading into "Black Panther 2" is that Wakanda will no longer be seen as the poor little nation that the world had become accustomed to. Wakanda is now known as the most technologically advanced nation on Earth, and now that everyone knows all about Vibranium, everyone from arms dealers to giant corporations are going to want a piece of the pie.

One arms dealer that could cause trouble for T'Challa in the sequel is Moses Magnum, an Ethiopian-born terrorist who is known as the Marvel Universe's foremost independent weapons manufacturer. Magnum is even more of a grounded threat who was raised from childhood to feel superior over other Africans. As opposed to Killmonger's goal of arming African Americans all over the world to defend themselves against their oppressors, Moses Magnum would use Wakanda for its resources to give himself a proper foothold.

Pitting "Black Panther" against a more down to earth threat with a superiority complex who wants to utilize Wakanda for power and profit could be a nice contrast to T'Challa's previous foe.

2. U.S. Government

Speaking of people who will want to utilize Wakanda for its resources, the government is a natural fit to challenge the Black Panther in some capacity or another. With Vibrnaium being established as the strongest metal on Earth and a whole stockpile being held in Wakanda, it is likely not a want for the U.S. government to get their hands on it, but a necessity.

The opportunities that Vibranium could grant soldiers, doctors, and the world in general are unlimited, but it also creates a risk. The ending of "Black Panther" seemed to imply that T'Challa would not just hand over Vibranium to whoever but instead use the tech for outreach centers that would be under his watchful eye. "Captain America: Civil War" already established that the government is not afraid to keep tabs on heroes and their potential destructive capabilities by hostile means.

The sequel could see the government trying to get their hands on some Wakandan tech through some very ruthless means... super villains. As glimpsed in "The Incredible Hulk" with the creation of The Abomination, General Ross (now the Secretary of State) is not afraid to go behind the back of his superiors and make life harder for the heroes.

1. Doctor Doom

Arguably Marvel's best villain in the pages of the comics, scientist and sorcerer Victor Von Doom is the sovereign ruler of Latveria, a nation in Eastern Europe with technology that rivals even Wakanda. Becoming known over the years as the archenemy of the Fantastic Four, Doom has caused problems for almost all of Earth's superheroes, including Black Panther.

In the "Doomwar" comic storyline, Dr. Doom initiates a hostile takeover of Wakanda from outside and within to retrieve Vibranium to amplify his own mystic powers. Doom is a character who will attempt to grab power at any chance he gets, as he sees himself as the only one fit to rule Earth and will take care of anyone who tries to get in his way. Also unlike Killmonger or Ulysses Klaue, T'Challa would not just be able to go into Latveria and arrest Doom due to his diplomatic immunity. Doom would further motivate T'Challa to think less like a superhero and more like a diplomat/strategist.

An introduction in "Black Panther 2" could establish Doom as a major threat before branching off into a new "Fantastic Four" or "Avengers" film, following the aftermath of Thanos.

"Black Panther" set up the world of Wakanda beautifully and now the floodgates are widened for expansion into enemy territory. A compelling villain that challenges all facets of the protagonist will only make T'Challa stronger as a hero. T'Challa wants to be a better king than his predecessors including his own father, but a king will face threats that will challenge moral law.

One thing is for sure, though; whoever T'Challa ends up having to butt heads with in the sequel, Vibranium will likely be at the center of the debacle. Whether it's Doom, Achebe, or Moses Magnum, the life of the Black Panther is only going to get harder from here on out. Wakanda Forever!