Tony Stark, aka Iron Man: He's definitely more enjoyable in this movie than he was in the first "Avengers" movie, mostly because he has learned to "play well with others". More of his spunky side comes out, but we also see his biggest fear. And like usually happens, by trying to insure that that fear doesn't come about, he almost brings that fear into reality.
Steve Rogers, aka Captain America: Cap is still wonderful, but he is also a man who is still trying to find his place in the world. He says that he's no longer interested in settling down and having a family like he was back in the 1940s, but there are so many moments where he seems to be feeling a deep hole in his life that you can't really believe him (and he is also still trying to find Bucky. At one point it is hinted at that it's been five years since Shield first fell, so it makes you wonder where Bucky's been all this time. Hopefully getting his memory back!)
Thor (no "aka" for him): He has pretty much acclimated to living on Earth after giving up Asgard at the end of "Thor: the Dark World" (including picking up some of Cap's martial arts stuff, apparently). He probably hasn't even thought about his old home much since he's been busy helping to stamp out Hydra. But once Loki's scepter and the Infinity Stones are brought back to his notice, he realizes that he is needed for more than just Earth's protection. He is also a bit more relaxed in his manner now that he is no longer the "heir apparent", which also means that he has more foot-in-mouth syndrome than he had in the previous movies (cue the cute-awkwardness). :)
Bruce Banner, aka The Hulk: He is more in control of his Hulkness and has put more safeguards in place against it, but he is still afraid that he won't be able to control it enough to keep the members of the team safe. We also get to see that he really does have some backbone and isn't just a teddy bear that's afraid that someone is going to say "boo" and cause him to turn into the Hulk. And he winds up finding a "very compelling reason not to turn green" (see the next profile).
Natasha Romanoff, aka Black Widow: We finally learn more of her backstory! She is a poor girl who got pressed into a mold and brainwashed about what was expected of her (thankfully not in the same way Bucky was brainwashed) who finally broke away from it and is still trying to make up for her past. We still don't know HOW she broke away, but I wouldn't be surprised if Hawkeye had a hand in it. She is also letting herself be more vulnerable by owning up to the feelings she has been developing towards Bruce, and encouraging the ones he has been developing towards her (as hinted at above).
Clint Barton, aka Hawkeye: I knew I liked Hawkeye from the moment he says "I'm starting to root for this guy" in the first "Thor" movie, and then from the parts where we got to see him sane in the first "Avengers". We get to see a lot more of his personality in this one, which can pretty much be described in a little bit of dialog between Tony and Bruce after Hawkeye has been injured. "How's he doing?" "Well, unfortunately, he's still Barton." "That's terrible." Of course, we don't think that's terrible at all. He's such a wise-cracking, down to earth guy. And *spoiler!* he's got a family! He definitely has the right woman behind him. I hope Laura gets to be in more stuff.
Ultron: THIS is the new bad guy, the robot that Tony created with the idea of using it to protect the world and create world peace. Unfortunately, it is such a highly "intelligent" robot that it gets the idea that the way to get world peace is to eliminate all of the human race. It is also very conceited and manipulating.
Wanda Maximoff, aka the Scarlett Witch: One half of a pair of twins that volunteered to help Hydra after a bomb created by Tony killed their parents, she has mind reading abilities, can create force fields, and has the ability to manipulate objects without touching them. She can also show others their deepest fears through visions. After Hydra is wiped out, she and her brother join with Ultron.
Pietro Maximoff, aka Quicksilver: Wanda's twin brother, this guy is super fast. Like, super-super fast. Blink and you miss him fast (which drives Hawkeye crazy). He's a bit cocky because of his ability, but you almost can't blame him. Once he and his sister realize that Ultron is planning on wiping out the whole human race and not just the Avengers, they change sides and join the Avengers. (Sidenote: He wears Adidas!!!)
The Vision: He is the result of Ultron trying to make a body for himself out of vibranium (the stuff Cap's shield is made of), the body getting captured by the Avengers, and Tony uploading JARVIS with a few alterations into it instead. He is more of what Tony had originally intended Ultron to be, just without the being able to protect the whole world by himself stuff. He is also the exact opposite of Ultron personality-wise, being a humble, polite, and insightful character. And he is the reason for the #1 jaw-dropping moment of the whole movie. As much as I would love to spoil it, I just can't. I'll leave it at that pretty much everyone in the theater went "Oh!" at the same time and then burst out laughing when it happened. It's great.
Nick Fury: He isn't in the movie all that much, but whenever he is, he is a pivotal force. First he gives the team the shot in the arm they need while they're in hiding licking their wounds, and then during the last battle he shows up at just the right moment with the backup they need.
Overall, it was a very well-done movie. It definitely needs parental guidance before even some teenagers see it (some of the visions the Scarlett Witch creates for the others get kinda creepy, and the battle scenes are a bit more dramatic than those in the first "Avengers"), but overall I thought it was good. My only complaint: they didn't bring Coulson back! While I've never watched any "Agents of Shield" episodes, I've read about the series and seen a few clips. And one part that I came across was an episode where Sif is on Earth helping them and she tells Coulson that Thor will be glad to know he's alive, and Coulson says that's why he'd like to tell him himself. And I'm sitting there going, "Well, WHEN ARE YOU GOING TO TELL HIM??????" They have to do it on film. They just HAVE to!!!!!
Now, how long until "Captain America: Civil War" comes out????? It is going to feel like forrrrrreeeevvvveeeerrrr. At least I have "Thor" on DVD now, so I guess that will help tide me over...that and catching up on "Star Wars" (I've only seen "A New Hope". Yes, shame on me). Anyway, go check out "Age of Ultron"! :)
BONUS:
As always happens when a new movie comes out, there have been a bunch of interviews with the actors floating around. I found a few that were so funny/cute that I just had to share them. :)
#1: Robert Downing Jr. meets Mini Thor
I totally like RDJ so much more after seeing the way he interacts with this little guy. While the other interviews with Mini Thor all showed the actors falling in love with him, RDJ definitely did the best job interacting with him and trying to make him feel special. <3 (And why didn't they do an interview with Mini Thor and Chris Hemsworth??? I would have probably paid to have seen that happen!)
#2: Jeremy Renner plays "Heads Up"
It is soooo nice to know that some celebrities have good taste regarding twerking (aka "I ain't going anywhere near that stuff"). And it's a good thing that (as far as I know) none of the characters he's played have had to have a dramatic death, because that one stunk. Sorry, Jeremy, but it's just the truth. ;)
#3: Chris Evans Doesn't Like It
This is so precious!!!!!! We "wuv" it! And somehow it seems super appropriate for Chris E to be the one saying that. For some reason trying to picture Chris H or RDJ saying it doesn't seem half as cute. Maybe Jeremy or Mark Ruffalo could have pulled it off, but Chris E was just the perfect one for it to happen to.
#4: "Who Would You Call?"
This is just a bunch of fun with most of the main cast (except for Chris H!!! Where the dickens was he?) I have to admit, Jeremy and Chris E were the funniest duo, though. "Thanks for ruining my career." :)