And the Avengers: Age of Ultron goods just keep on coming.  After yesterday’s image debuts, this morning brought news concerning Paul Bettany’s version of The Vision in the Marvel sequel.  Now, continuing Entertainment Weekly’s extensive set visit coverage, we have thoughts from writer/director Joss Whedon and new additions Elizabeth Olsen and Aaron Taylor-Johnson on the characters Scarlet Witch and Quicksilver.  Whedon reveals which side we find the brother-sister duo land on and discusses their unique family dynamic, while the actors further talk about their iterations of the comics characters.  Hit the jump to read on, though be aware there might be minor spoilers (that will likely be revealed in the trailers anyway).

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Image via Marvel Studios

Speaking with EW, Whedon says the twin siblings Scarlet Witch and Quicksilver will act as antagonists for the titular Avengers:

“They’re on Team Ultron, which makes things really hard for the Avengers because all of sudden they’re dealing with powers that they’re not used to. With the [first] Avengers, everybody pretty much had the power of being able to punch somebody. And now we have a woman who can get inside your head and move objects, and a boy that can move faster than anything, and a robot [Ultron] who can self-replicate and is out of his mind. So all of sudden, it’s a darker, weirder, tougher world that they’re living in.”

Whedon added that the new duo harbor a secret grudge against the Avengers:

“I’m interested because there’s familial issues with that kind of resentment. You can sort of go deeper and I can play with their relationships and I can play with attitudes. Scarlet Witch and Quicksilver hate them with a fiery hate…”

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Image via Disney

However, that grudge might not exactly hold for the entirety of the film if this concept art image is any indication.  Speaking to their brother-sister connection, Taylor-Johnson said Quicksilver and Scarlet Witch compliment each other well:

“They’re gypsies in a way. They’re romani. They’re sort of like travellers…There’s a lot of clashing. He’s quick tempered. He gets agitated. He’s impatient. But he’s super protective. They’re very yin-and-yang in that twin sense. In his power, he’s physical and she’s psychological. My character is very much on the frontline, but he can be quite emotional. You see this beautiful tenderness between them.”

As for Scarlet Witch’s supernatural powers, Olsen says she doesn’t have complete control over actions:

“The reason she’s so special is because she has such a vast amount of knowledge that she’s unable to learn how to control it. No one taught her how to control it properly. So it gets the best of her. It’s not that she’s mentally insane, it’s just that she’s just overly stimulated. And she can connect to this world and parallel worlds at the same time, and parallel times.”

Look for much more on Avengers: Age of Ultron in our full Marvel panel recap from Comic-Con next weekend.  The film opens in theaters on May 1, 2015.

Click here to catch up on all of our Avengers: Age of Ultron coverage, or peruse the recent links below:

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Image via Marvel