We know from the latest Iron Man 3 toy reveals and scenes in the trailers that multiple subjects (“volunteers”) – including the mysterious character Stephanie Szostak is playing – undergo the Extremis procedure at the hands of Killian and when they do, the results are noticeable on their body with strange, red vein markings. As Black mentioned weeks earlier, there’s a special effect yet to be revealed in the marketing so far involved, and Pearce tells Marvel that it’s one of the more exciting elements fans have to look forward to:

“I think the way Extremis works through people’s bodies. Often the visual effects guys would say, ‘At this moment, we’re going to see pulsing veins up your neck and we’re going to see that your eyes are going to sort of glow orange.’ So, they had a few different ideas about how that was going to go and they were obviously very excited about pushing the envelope and doing things they haven’t done before.”

One of the other key characters Marvel Studios has kept under wraps who undergoes the Extremis procedure is Savin (known as “Coldblood-7″ in Marvel Comics). He’s played by James Badge Dale and Kevin Feige confirms that Savin works for Killian, potentially as a henchman or operative for A.I.M..

“You don’t know a lot about Savin at first but as the movie unfolds you learn more and more that he is a very frightening individual and he’s somebody that has used Maya Hansen’s technology Extremis for his own ends. He’s somebody who can walk around and seemingly be just sort of an average Joe, but who presents himself with such a cocky confidence that you’re not sure where that’s coming from or why he has it and then you see what he can do.”

The lack of a cyborg-esque costume and eye patch coincides with Dale’s description of the Savin costume months earlier.

The visual effects of Extremis

As for Maya Hansen (Rebecca Hall), an old love interest of  Tony Stark, she’s one of the minds behind Extremis who also works for Killian’s organization. Feige hints at her character arc in the film when describing her performance:

“Rebecca is just spectacular at those scenes and at showing how torn her character is between knowing she’s invented something that can do such amazing things, but seeing how wrong it’s gone and how dangerous it’s become.”

There’s a lot of information to dissect and even through the connections of Killian, Hansen and Savin are made clear with the confirmed A.I.M. details – an organization Pepper Potts used to work for – we still don’t know how The Mandarin’s plans factor in or the connection to Killian, we still don’t know Stephanie Szostak’s role or how A.I.M. could play a part in other Marvel movies down the road.

Iron Man 3 is directed by Shane Black based off of his and Drew Pearce’s screenplay, and stars Robert Downey Jr., Ben Kingsley, Don Cheadle, Gwyneth Paltrow, Guy Pearce, Stephanie Szostak, Jon Favreau, Rebecca Hall, William Sadler, James Badge Dale and the voice of Paul Bettany.

Iron Man 3 releases May 3, 2013, Thor: The Dark World on November 8, 2013, Captain America: The Winter Soldier on April 4, 2014, Guardians of the Galaxy on August 1, 2014The Avengers 2 on May 1, 2015 and Ant-Man on November 6, 2015.

Follow Rob on Twitter @rob_keyes for your Marvel movie news!

Sources: Disney, Marvel, SFX Magazine

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