The cast for director Bryan Singer's X-Men: Apocalypse continues to fill out as they get closer to the start of production. IGN was able to sit down with the titular villain himself, Oscar Isaac, recently to talk about his science fiction thriller Ex Machina - expanding in theaters on April 24.

Oscar Isaac | Photo by: Cherie Roberts

The last time we spoke with the actor about the project, he discussed he and Singer's approach to bringing the iconic character to life . At the time, Isaac also mentioned being a huge fan of the Archangel storyline as a kid. Ben Hardy has since been cast as Angel in the film, and Singer has assured that this is 'not a very nice angel.'

X-Men: Apocalypse How Oscar Isaac and Bryan Singer Will Bring Apocalypse to Life

Gathering the Horsemen

During our recent chat with Isaac, we asked what is he most looking forward to exploring in that storyline now that Angel has been cast.

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The Many Faces of Apocalypse

"Without giving anything away, the recruitment of the Four Horsemen is very cool," the actor enthused. "It's very interesting the way that he does that. You know the idea of - the way that cult leaders do - they find people that are in need of something and try to fulfill that thing in them - as it relates to every one of the Horseman."One of the other interesting things about Apocalypse as a character is the idea that he can manipulate molecules. Previously, Isaac has said that the team will be using a combination of CGI and practical effects to capture the look of the character. With the available technology, there are almost infinite possibilities for Apocalypses' physicality.

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Becoming the Biggest Bad of Them All

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When asked if he was excited about the possibility of portraying - in some respects - what could be multiple versions of this terrifying creature, Isaac replied, "Absolutely. And at the same time figuring out what the limits are and how it relates to how he moves and what it costs him. That's always a fun thing. So to be able to sit with [writer/producer] Simon Kinberg and - as a fan - just go through it and be like, 'Well what about this!?! You know, this is something that he does in the comics and is there a way to incorporate this? Or if he has this power suddenly how do we make that not come out of nowhere?' So it's really fun to map that thing out. But yes, the nature of how his powers manifest themselves is to a certain extent quite open to interpretation. Because there are so many and they are so vast."There's a certain expectation that Apocalypse must be unthinkably powerful and chilling in order to dominate, not just the X-Men, but the world - forever changing the course of history.When asked what he was drawing on for inspiration, the Isaac said, "I think for me it's much more about the biblical Apocalypse. Have you heard the Johnny Cash song 'When the Man Comes Around'? That's what I think we're trying to channel with Apocalypse."Isaac has perviously discussed the word Apocalypse itself as a source of inspiration, which in certain interpretations actually means to reveal. "We associate so strongly with destruction, but it actually means to lift back the curtains," the actor said.When asked what this character would be revealing Isaac replied, "On an individual level he's able to reveal the true power of his Horsemen and what's true to them. And I think to reveal the weakness - how weak we've become. Because this is an ancient entity. So to come to - I think 1983 - and say, 'How did the world become so weak? How did we allow ourselves to become to weak and to enslave ourselves.' I think that's where he's coming from."You can see Oscar Isaac in Ex Machina now and in X-Men: Apocalypse when it opens in 2016.

Roth Cornet is an Entertainment Editor for IGN. You can follow her on Twitter at @RothCornet and IGN at Roth-IGN