Avengers: Age of Ultron Quicksilver and Scarlet Witch costumes on display...

In Avengers: Age of Ultron not only are Earth's Mightiest Heroes assembled once again, but they are also joined by a few new additions to swell their ranks against the homicidal robot, specifically 'Quicksilver' and 'Scarlet Witch'. Here are the costumes worn by Aaron Taylor-Johnson and Elizabeth Olsen as 'The Twins', 'Pietro and Wanda Maximoff', on display at the El Capitan Theatre in Hollywood on May 5, 2015.

Original Quicksilver and Scarlet Witch costumes

from Avengers: Age of Ultron

Alexandra Byrne was responsible for Costume Design on Marvel's Avengers sequel and if you like these outfits, be sure to also check out these Captain America and Hawkeye, Black Widow, Nick Fury and Thor costumes from Avengers: Age of Ultron on display at several ArcLight Cinema venues.

Avengers: Age of Ultron at the El Capitan Theatre in Hollywood

In this cinematic version of the super-powered Maximoff siblings, they hail from the Eastern European country of Sokovia and initially ally themselves with Ultron to get revenge on 'Tony Stark' after his bombs had costs them their parents as children.

In the movie their enhanced abilities, superspeed and mind manipulation, telekinesis and energy projection respectively, were created by 'Baron Strucker' and his HYDRA experiments after they willingly submitted for testing.

Original Quicksilver costume worn by Aaron Taylor-Johnson

in Avengers: Age of Ultron

As Quicksilver (never actually referred to as this codename) and his sister are not officially Avengers throughout the film they don't sport traditional superhero uniforms for the majority of the action, instead the speedster tends to wear quite sporty apparel (and later clothes and Adidas sneakers found in a Avengers Tower supply locker room). The lighting bolt designs on his top are a nice nod to the character's comic book origins though.

If you're a fan of the muscular Aaron Taylor-Johnson, you should also check out his costumes from Anna Karenina and his Dia de los Muertos mask from Savages.

Avengers: Age of Ultron movie poster

Funnily enough in the recent Godzilla remake Aaron Taylor-Johnson and Elizabeth Olsen played a young husband and wife with a child, whereas here they are cast as twin brother and sister, with 'Wanda' being twelve minutes younger.

Original Scarlet Witch costume worn by Elizabeth Olsen

in Avengers: Age of Ultron

Scarlet Witch is one of my favourites in the movie (alongside Paul Bettany's 'Vision'), from her edgy goth look to her powers, the way they're depicted, and her character arc. She gets this red leather jacket when 'Pietro' find it and throws it to her at Avengers Tower. Personally I'm even more excited by her official Avengers costume glimpsed at the very end of the movie.

If you're a fan of witchcraft, be sure to also check out all these other spellbinding witch costumes from other movies.

Avengers: Age of Ultron movie poster