Washington, June 26 -- Pedro Pascal, set to star as Mister Fantastic in Marvel's upcoming film 'The Fantastic Four: First Steps,' has spoken out about the initial backlash over his casting.

In a recent interview, Pascal acknowledged the criticism and said, "I'm more aware of disgruntlement around my casting than anything I've ever done," as quoted by Deadline.

Some of the negative reactions to Pascal's casting included comments that he was "too old," "not right," and "needs to shave."

'The Fantastic Four: First Steps' is set to open in theatres on July 25 and features a star-studded cast.

Vanessa Kirby will star as Sue Storm / Invisible Woman, Joseph Quinn as Johnny Storm / Human Torch, and Ebon Moss-Bachrach as Ben Grimm / The Thing....