Marvel has a habit where they introduce new supporting and main villains and heroes into their movies. Raza was a supporting villain in Iron Man, The Warriors Three were the supporting heroes of the Thor movies, Falcon was a supporting hero in Captain America: The Winter Soldier, and Kurse was a supporting villain in Thor: The Dark World. I have composed a list of new and returning characters we need to see in Marvel's Phase Three films. I will not be listing the heroes that the films are about or the villains that we know will be in the film, or heroes and villains that just don't work, and I know Ant-Man is Phase Two film, but I am still writing about it in this list.
Ant-Man (July 17th, 2015)
Heroes:
-Wasp!! Sadly no one has been cast as Janet Van Dyne (AKA Wasp), but a knew Van Dyne has been. Evangeline Lilly has cast has a new character Hope Van Dyne. Maybe Hope will be a version of the Wasp?
Villains:
-M.O.D.O.K.. M.O.D.O.K. and AIM would be great additions to the MCU. AIM has been briefly seen in Iron Man 3, but it would be great to see them flushed out further. I think that the Ant-Man film would be a great place to bring them into the universe. And where ever AIM is, M.O.D.O.K. is sure to follow.
Captain America: Civil War (May 6th, 2016)
Heroes:
-Daredevil and the Defenders. By the time this film is released, we will have seen at least 13 episodes of Daredevil and AKA Jessica Jones, and we may see episodes of Luke Cage, Iron Fist and the Defenders around or just after this film debuts. This film would be a great place to bring in these heroes into the MCU.
-Spider-man. I know I said that Sony Pictures owns Spider-man, but Marvel Studios has been trying to get the rights to this character for this movie. Spider-man plays a critical role in the Civil War story arc, and it would be sad to not see him in this film.
Villains:
-Nitro. Nitro plays a small part in the Civil War comic, but it is one of the most critical. Having this minor character in the film would be a nice nod to the source material.
Doctor Strange (November 4th, 2016)
Heroes:
-The Ancient One. Even though I can pretty much guaranty that this character will appear in this film, he was the only other hero that I could think of that could appear in a Doctor Strange film. The Ancient One is Doctor Strange's master and he must be in this film.
Villains:
-Baron Mordo. Baron Mordo is a fallen student of The Ancient One and is the arch nemesis of Doctor Strange. He would be a great addition to the film!
-Dormammu. From what we've heard about this film, Dormammu will most likely be the main villain. His interdenominational abilities would ad something new to the MCU.
Guardians of the Galaxy 2 (May 5th, 2017)
Heroes:
-The original Guardians! Many of you don't know this, but the Guardians of the Galaxy were originally a future-set 1960s team. The modern Guardian and the original Guardians have crossed over in the comics, and it would be great to see them in a movie together. The chances of them being seen in this film are likely since we did see Yondu in the Guardians of the Galaxy film and Yondu is a member of the original Guardians.
Villains:
-The Badoon. In the comics, the Badoon were the aliens that killed Peter Quill's mother, and they have been some regular foes of the Guardians. The also have ties to J'son, Peter's comics father.
Thor: Ragnarok (July 28th, 2017)
Heroes:
-Beta Ray Bill. Beta Ray Bill is the only other person who is able to lift Thor's hammer. In the Avengers: Earth's Mightiest Heroes TV series, Beta Ray Bill was introduced has a alien who has being attacked by Surtur's (more on him in a moment) Fire Demons. This would be a great way to introduce him into the movie top.
Villains:
-Surtur. Since this film is called Ragnarok, I can promise Surtur will be in the film. Him and his Fire Demons would be quite the challenge for Thor and Co., and maybe he'll ever destroy Asgard.
Black Panther (November 3rd, 2017)
Heroes:
-White Wolf. In the comics, Hunter, AKA White Wolf is the adopted brother of T'Challa (who becomes Black Panther). He is a pretty unknown character, but he would be perfect for the film, none the less.
-Captain America. WARNING: Potential spoilers for Captain America: Civil War in this character blurb. Since Steve Rogers (the current Captain America) will most likely die at the end of Civil War, and Bucky Barnes will take up the mantel, this would be a great film to introduce Bucky as the new Cap. Maybe T'Challa could come to america for help defeating the people who killed his dad, and recruit Captain America?
-Hawkeye. Since Scarlett Johansson's Black Widow has made two performances outside of The Avengers film, and Jeremy Renner has made one other cameo in Thor, so I think it's high time Hawkeye made a stand out performance away from Avengers film. I think Black Panther would be the perfect film to do that.
Villains:
-Ulysses Klaw. Klaw has been teased by Marvel, and it looks like he will be played Andy Serkis. Klaw is the Murderer of T'Challa's father, T'Chaka, and Klaw being a villain in this film would be amazing.
-Man-Ape. As seen in The Avengers: Earth's Mightiest Heroes TV show, he was a rival of T'Chaka and this would be a really great approach for the character.
Avengers: Infinity - Part 1 (May 4th, 2018)
Heroes:
-Not every-one. Bringing everyone into this movie would spoil the excitement of seeing that in the next movie. Maybe they could base this movie on the Captain America: Reborn Story? That would be cool.
Villains:
-Some Thanos minions. I'm not sure what minions, but some sort of henchmen of Thanos. Maybe they could be trying to stop the heroes from awakening Captain America?
Captain Marvel (July 6th, 2018)
Heroes:
-Captain Marvel. This is a different Captain Marvel than the title one, that one is Carol Danvers, I'm talking about Mar-vel, a Kree soldier who was involved with giving Carol Danvers her powers, and has been her ally for a long time.
Villains:
-Ronan The Accuser. I know that he died at the end of Guardians of the Galaxy, but I want to see him brought back! Ronan and some other Kree could be trying to stop Captain Marvel from alerting the Guardians of the Galaxy of Thanos' presence of Earth?
Inhumans (November 2nd, 2018)
Heroes:
-Captain Marvel. Now I'm talking about Carol Danvers, she could have heard about the Inhumans through a Kree computer, and has gone to get their help fighting Thanos?
Villains:
-Maximus the Mad. I honestly don't know much about Maximus, other than he's Blackbolt's (the Inhuman king) brother, he's evil and he's a main foe of the Inhumans. I think he could bring some squabbling-royal-family drama to the MCU.
Avengers: Infinity War - Part 2 (May 3rd, 2019)
Heroes:
-Everyone!!!!! This is the perfect film to unite all the MCU characters in one movie. Thanos is here, and now all the heroes must ally to stop him!!!!
Villains:
-All the living ones!! Thanos could recruit the villains and help him defeat the heroes of the MCU.