Ahead of The Fantastic Four: First Steps' Digital release tomorrow, the movie's post-credits scene has found its way online in HD. However, after leaving for a brief moment, she returns to find Doctor Doom, kneeling before him. The Fantastic Four: First Steps director Matt Shakman and Invisible Woman actor Vanessa Kirby have both confirmed that Robert Downey Jr. was on set as Doom for this scene, so yes, he's wearing the cloak. Check out The Fantastic Four: First Steps' mid-credits scene in its entirety below. The Fantastic Four: First Steps is directed by Matt Shakman from a screenplay by Josh Friedman and Eric Pearson and Jeff Kaplan & Ian Springer.