Top Ten Most Underutilized Marvel Cinematic Universe Characters

This is different than the Most Underrated McU Characters list, as it focuses on characters who weren't utilized very well, either due to constraints on the actors or otherwise. These characters aren't underrated per se, but they are not popular because they aren't given enough screen-time or development.
The Top Ten
1 Pietro Maximoff / Quicksilver

He was literally only in one movie, Age of Ultron, unfortunately dying without much else to him other than his super speed and experimentation, not to mention being with Ultron. I was sad to see an Avenger actually dying in the movie, especially a new one. Even though Wanda lives on for more movies, it's really bad to see her brother go.

They had to kill him off early due to Fox owning X-Men at the time.

I completely agree

2 Sif Sif is a fictional character appearing in American comic books published by Marvel Comics. The character is depicted commonly in association with the superhero Thor. Based on the Norse goddess Sif, she was created by Stan Lee and Jack Kirby and first appeared in Journey Into Mystery #102 (March 1964). more.

Oh Sif, you really should've been more utilized in the Thor movies. Just a supporting role in the first two roles and NEVER APPEARING IN RAGNAROK AT ALL. Maybe Loki (in his tenure posing as Odin between movies) exiled her, but this prevented her from ever being in that movie regardless. And then apparently it's confirmed that Thanos's snap had killed her offscreen.

Yeah, would have been awesome along with other Asgardian characters to get more attention.

3 The Warriors Three

And just like Sif, these three guys never got utilized much at all, despite minor roles in the first two Thor movies. What's worse is that they are pretty much immediately killed by Hela in Ragnarok (Hogun at least had an entire army helping him, but she singlehandedly slaughters everyone). Fandral gets it worst.

4 Taneleer Tivan / The Collector

Benicio del Toro plays a rather enigmatic role, but his roles have always been minor, with his best being a Thor: The Dark World mid-credits scene along with a more interesting role in GotG. He's supposed to be a villain too. We don't even know what happens to him in Infinity War, whether or not he was killed by Thanos is hard to tell.

He was pretty cool

5 The Other

He could've been an interesting villain who despite being somewhat cliche seemed to have that villainous tone, even letting Loki be his underling. The next time we see him in Guardians of the Galaxy, Ronan just kills him in an argument in Thanos's throne room. Really lame.

6 Samuel Sterns / The Leader

Am I one of the only ones here who wishes there was a second Hulk movie? He gets barely any screen-time in the Edward Norton movie, and only shades of villainy which we never see again for the rest of the MCU. I hope there's a new movie for the Hulk with this guy as the antagonist.

7 Brock Rumlow / Crossbones

The comics make him out to be one of Captain America's main adversaries. His double agent stunt in Winter Soldier is fine, but it's a minor role. And much like other characters, in a sequel movie (Civil War in this case), he's basically the starter villain to be killed in the first part of the movie.

Minor, but the movie focused on other characters, which was the right choice.

8 Heimdall Heimdall is a fictional character appearing in American comic books published by Marvel Comics. The character is based on the Norse deity Heimdallr.

Naturally Heimdall has been rather underutilized throughout the series. It kind of sucks for Idris Elba not to get much of the screentime his character had overall. At least he was the best character in Ragnarok, sending the Asgardians to safety and protecting them while Hela takes over, but still, his underutilization cannot be ignored.

9 Baron Wolfgang von Strucker

Another Hydra villain without a whole lot of screentime. He's responsible for the test subjects in Pietro and Wanda Maximoff as depicted in Winter Soldier's post-credits scene, and has a slightly bigger role in Age of Ultron, but is unceremoniously killed off by Ultron later on.

10 Wong Wong is a fictional character appearing in American comic books published by Marvel Comics. He is the sidekick and valet of Doctor Strange, the Sorcerer Supreme of Earth. Wong first appeared in the comic Strange Tales #110 but was unnamed until Strange Tales #119.

The all-powerful Sorcerer who passionately fought the Black Order and then left...for a sandwich?

The Contenders
11 Korath

We'll see if Korath is gonna get more development in Captain Marvel, since he and Ronan are gonna be in that movie, even though he gets killed in GotG.

Hopefully a good Marvel villain.

12 Arnim Zola
13 Shuri
14 Ghost (Antman and Wasp)

Just recently watched this movie. They were trying to find a cure for her when the snap happened. She was interesting.

15 Ebony Maw
16 Ultron Ultron is a fictional supervillain appearing in American comic books published by Marvel Comics. He is most recognized as a foe of the Avengers, and has a quasi-familial relationship with several of their members, especially his creator Hank Pym.
17 Hope Van Dyne
18 Loki Loki Laufeyson, or Loki Odinson, is a fictional character appearing in the American comic books published by Marvel Comics. He is the adoptive brother and archenemy of Thor, and is known as the "God of Mischief". In the Marvel Cinematic Universe, the character has been portrayed by Tom Hiddleston.

He's my favorite

19 Howard The Duck Howard the Duck is a fictional character appearing in American comic books published by Marvel Comics.
20 Yon-Rogg
21 Justin Hammer
22 Rocket Raccoon Rocket Raccoon is a fictional superhero appearing in American comic books published by Marvel Comics. Created by writer Bill Mantlo and artist Keith Giffen, the character first appeared in Marvel Preview #7.
23 Kraglin Obfonteri
24 Proxima Midnight
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