Speculations are rife about Ryan Gosling's Marvel debut. The actor has admitted that he wants to appear in a Marvel film at some point and he also mentioned his interest in portraying Ghost rider. There were claims that Gosling would be appearing in Thunderbolts or Fantastic Four.
An earlier leak said that Marvel had considered Ryan Gosling for Doctor Doom's role, the major Fantastic Four antagonist. But it’s too soon to tell whether he will be the main villain in the first Fantastic Four movie.
A few months ago, a report said that Gosling is one of the actors Marvel is eying for the role of Sentry a villain in Thunderbolts. Since Thunderbolts rumors have subsided, let's wait and see if the actor will emergence as the main villain in Fantastic Four.