Marvel has posted the first featurette from AVENGERS: AGE OF ULTRON, which introduces the super hero team’s newest frenemies, Scarlet Witch (Elizabeth Olsen) and Quicksilver (Aaron Taylor-Johnson). We still know very little about these characters and how they’ll fit into the equation when we finally see it completed, but this video shows the disposition and complexity of the twins are very much in alignment with the source material. Perhaps these two will join the team before doing too much harm, but it doesn’t look like the Avengers will have that kind of luck this time out.

For more on Scarlet Witch and Quicksilver, checkout this awesome article over at BuzzFeed with quotes from the actors, writer/director Joss Whedon, and producer/Marvel Studios boss Kevin Feige. There’s nothing too spoilery in it, but if you’ve reached that point where you don’t want any additional information until you see the film, then you may want to give it a pass.

MARVEL’S AVENGERS: AGE OF ULTRON is in theaters May 1.