Bruce Banner actors in The Incredible Hulk and Avengers are different. Marvel Studios is unfortunate regarding this important thing (they failed to keep an actor even until full phase 1).

But, what was the in-universe explanation given to support this change of face? Or, did they believe that fans are ignorant?

  • 20
    Fans don't have to be ignorant to understand re-casting an actor...
    – Nerrolken
    Commented Apr 29, 2015 at 0:20
  • 1
    You could also ask what the explanation is for Fandral's change of face.
    – user44330
    Commented Apr 29, 2015 at 0:23
  • 7
    He regenerated.
    – Radhil
    Commented Apr 29, 2015 at 0:53
  • 1
    @Nerrolken - ever heard of Oracle? Commented Apr 29, 2015 at 1:25
  • 3
    @CreationEdge - If this were simply a question of whether or not there was an explanation, I would reverse my downvote. I think the strong suggestion that an explanation is required is my problem with the question, when this is common enough in all acted media let alone SFF, that it shouldn't have required the effort and detail your answer (though now awesome) gave it.
    – Radhil
    Commented Apr 29, 2015 at 22:39

3 Answers 3


There isn't an in-universe explanation for these types of things.

It also happened when Don Cheadle replaced Terrence Howard as Rhodey from Iron Man to Iron Man 2. In that instance, it's even more clear that the characters are a part of the same continuity (while there can be considerable leeway given to the first HULK movie).

We see that it's being portrayed by a different person, but in the fictional reality nothing has changed.

We're clued in to that at the beginning of Iron Man 2, in which Don Cheadle first enters as Rhodey.

Stark: Hey, buddy. I didn't expect to see you here.

Rhodes: Look, it's me, I'm here. Deal with it. Let's move on.

Stark: I just...

Rhodes: -Drop it.

Stark: -All right, I'll drop it.

This scene is explained in an interview with Cheadle by Collider to have been a reference to the casting change:

Interviewer: I’m curious about the first scenes you guys shot were the courtroom scene with the senator with Gary Shandling and obviously you’re coming into a role that originated with another actor. How daunting is it or how was it when you first walked on set with that many people and try to still figure out how am I going to do this?

Don: Well, a lot of that was figured out before we began shooting. And really there were no marching orders of, watch the first movie and make sure that you come in here and you’re paying off what Terrance did in the first movie. It was really you’re in character; you’re going to do your own thing. We have to find out what works for this movie and, you know, honor this story which is a whole new story. That’s why I liked how we kind of just dealt with it right up front first scene, first moment that I appeared on screen. Say something about it and then just move on.

Interviewer: What do you say?

Don: What do I say in the trailer? They showed that I think. Yeah, it’s me. I’m here, deal with it. Let’s move on.

What's important here is that Rhodey says, "It's me." There's nothing said specifically about his appearance, and no other character ever makes a comment about Rhodey looking different. So, even though the change was acknowledged for us, the viewers, there was no change for the characters in the fictional reality. The Iron Man 2 opening scene essentially gives us 2 things:

  1. An out-of-universe acknowledgement that things changed, using in-universe dialogue. But, that dialogue, when taken at face value by the fictional characters, really means nothing more than, "I'm here."

  2. An in-universe acknowledgement that for the fictional characters, nothing has changed, because Rhodey is still Rhodey, not new-face Rhodey.

I'm sorry to rely so heavily on the Cheadle/Rhodes scene, instead of anything with Ruffalo/Banner. However, The Incredible Hulk was designed to be both a reboot and a sequel to HULK, so there wasn't a clear continuity there. From The Incredible Hulk to The Avengers, I think the audience is less concerned with the change: The other two movies performed poorly and had a different actor for the title role.

I would note that it's not just Banner that has changed, but his Hulk appearance as well. Not only had he changed facial and body structure, but size and color.

In HULK, he reached about 20 ft in height. In The Incredible Hulk, he's about 9 ft while fully erect. In The Avengers, he's around 7.5-8 ft tall, although we never seen him fully upright. Here are the relevant images presented in the same order:

Hulk cinematic appearances size differences

Here are pictures illustrating his color and other physical difference, again in the same order:

Hulk cinematic appearances physical differences

Since these changes are as substantial as changing the actor, it also presents another opportunity for an in-universe explanation. However, there isn't one provided. In this case, I would feel an explanation is more plausible, considering Hulk is a type of mutation, and even in the comics he's had many different appearances. Since the opportunity for explanation was there, but not taken, I believe it's further evidence that there needs to be no in-universe explanation, because in-universe nothing has changed for the characters.

Historically, it's very common for one character to be played by a variety of actors. Looking at plays, for example, where the actor playing lead may change from show to show. There's no reason for an in-universe explanation to break the fourth wall, as they did in Iron Man 2.

Very rarely do movies or shows come up with an in-universe explanation to explain the change in actor's appearances. Famous examples are The Oracle, from the Matrix trilogy, and the Doctor from Doctor Who. However, both of their fictional universes not only have plausible explanations for such a change, but the change is meant to be part of the story.

When it's simply a recasting, the new actor's appearance is not part of the story, and we ignore the change. It's one of the more basic parts of suspension of disbelief.

  • 7
    There actually is a joke about the recasting of Rhodey, in the senate committee scene when Don Chedlle makes his entrance he says "look it's me, I'm here now, deal with it." While the line fits in context, it was also admitted by the producers to be a tongue in cheek moment to acknowledge that yes, this is a different actor playing the same part.
    – Monty129
    Commented Apr 29, 2015 at 9:37
  • @Monty129 If you can provide a source for the tongue-in-cheek part of it, I'd be happy to update it and include it in my answer. I don't disbelieve you, but I would never have taken that scene (even after rewatching it just now), as a joke about the recasting without someone telling me that. It just played as an "introduce the character to the movie" scene to me.
    – user31178
    Commented Apr 29, 2015 at 17:17
  • I'll see if I can find the video interview I saw it on.
    – Monty129
    Commented Apr 29, 2015 at 17:20
  • This is the article that's dealing with Don Cheadle's appearance at comic con and he addresses it directly that it's a joke they put in up front. collider.com/don-cheadle-comic-con-interview-iron-man-2 The relevant text is about half way down the page.
    – Monty129
    Commented Apr 29, 2015 at 17:38
  • 1
    @Monty129 Thank you, I've included that in my answer and made substantial updates.
    – user31178
    Commented Apr 29, 2015 at 18:26

No in-universe explanation is required because there was no in-universe change of face.

In-universe, none of those characters look the way we see them. Tony Stark doesn't look like Robert Downey Jr and Thor doesn't look like Chris Hemsworth. We are seeing an abstract representation of events in that universe.

So, an actor can be swapped out and it means literally nothing.


I don't know where the guy above me got that from, but everybody in the MCU actually does look like their actor counterpart, Iron Man looks like Robert Downey Jr. and Thor looks like Chris Hemsworth, Nick Fury looks like Samuel L Jackson, Peter Quill looks like Chris Pratt, and Peter Parker looks like Tom Holland, thats kind of the whole point.

Now as for Bruce Banner, my theory is that Edward Norton got stretched out from turning into the Hulk, and started looking like Mark Ruffalo, Mark Ruffalo might also being using 5% Hulk which makes him look slightly different, also hes a little bit older I guess after The Incredible Hulk so all those 3 things combined might contribute to why Bruce Banner looks so different.

  • No... Peter Parker looks like Tobey Maguire - or was it Andrew Garfield? Who can tell? :-)
    – HeartWare
    Commented May 28, 2018 at 7:01
  • "thats kind of the whole point" The whole point of what? Acting? Hardly. Commented Jun 14, 2018 at 21:34

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