Avengers: Infinity War opens worldwide in a little over a week, featuring the largest roster of Marvel characters in a single film to date. But despite the film's massive cast, fans have long seen the X-Men and Fantastic Four as glaring omissions from the MCU as their cinematic rights have been licensed to rival studio 20th Century Fox for years.

While doing press for the upcoming Avengers film, directors Joe and Anthony Russo revealed in an interview with Games Radar which Marvel character currently licensed to Fox they wish they could've included in Infinity War.

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"It would probably be Wolverine." Joe Russo admitted. When reminded that Disney is in the midst of finalizing a deal to acquire Fox by the end of the summer of 2019, Russo remained hopeful over the prospect of Marvel's Merry Mutants one day crossing paths with Earth's Mightiest Heroes. "We could be close."

In a previous interview, the Russos had discussed the possibility of adapting the classic Marvel event Secret Wars which saw The Avengers team up with the X-Men and Fantastic Four to take on their combined enemies after being mysteriously transported to Battleworld. Though the brothers didn't commit to wanting to actually direct this story, it could theoretically become possible if the acquisition goes through.

On a more comedic note, the co-director added which childhood favorite Marvel character he would have loved to include in Infinity War.

"My joke answer is always Groo the Wanderer," Joe Russo remarked referring to Sergio Aragonés fantasy/comedy series poking fun at characters such as Conan the Barbarian and published by Marvel throughout the 80s and 90s. "Frankly, I used to collect Groo as a kid."

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Directed by Joe and Anthony Russo, Avengers: Infinity War stars Robert Downey Jr., Chris Evans, Chris Hemsworth, Mark Ruffalo, Jeremy Renner, Scarlett Johansson, Anthony Mackie, Paul Rudd, Elizabeth Olsen, Tom Holland, Benedict Cumberbatch, Chadwick Boseman, Chris Pratt, Zoe Saldana, Dave Bautista, Bradley Cooper, Vin Diesel, Tom Hiddleston, and Josh Brolin. The film arrives April 27.