The Avengers and SHIELD go hand in hand, which makes it no surprise that Nick Fury and his colleagues will be dropping by for The Avengers: Age of Ultron.

Although they are equipped with their own TV outlet, the agents of SHIELD will come back in force when the Avengers need to assemble once more. Agent Coulson (Clark Gregg), however, may not make the jump from Agents of SHIELD to Age of Ultron, according to writer/director Joss Whedon. Although the death of the beloved agent was a rallying point in 2012’s The Avengers, the newly revived Coulson could be hard to fit into an already jam-packed film.

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''He could. Right now it's not something I'm pursuing because I have so much going on in Avengers 2,” Whedon explained to Contact Music. “Finding out that Coulson is alive would be an entire B story. And I already have too much movie.''

Nick Fury (Samuel L. Jackson), on the other hand, is a lock for the 2015 sequel considering he spearheaded the Avengers Initiative. Despite this, Jackson is unsure what will become of the eye-patch donning agent when the credits role on Age of Ultron.

'I just know that the Marvel Universe is there, that there are things going on, and that I have three pictures left on my nine-picture deal. That's all I know,” Jackson told Fandango. “I've done six of them, and I'm about to do seven, so I'm running out of Marvel pictures - unless they extend my contract.'"

Meanwhile, How I Met Your Mother's Cobie Smulders is being very tight-lipped about her role as Agent Maria Hill.

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“I'll tell you, I'm excited about it. I know everything there is to know, but I'm not saying anything about it -- until literally the movie's out on DVD,” Smulders joked in an interview with IGN. “Then I'll be like, ‘Wasn't that a great part?’ But I'm very excited. Joss Whedon is the best man on the planet.”

The Avengers: Age of Ultron won’t hit theaters until 2015, but Marvelites can get a glimpse of the film’s central villain by clicking the video below.