VIDEO : Clark Gregg Looks Younger Than Ever In Captain Marvel Trailer

According to ComicBook.com the first trailer for Captain Marvel just gave fans a lot to be excited about. The presence of one fan-favorite character has sparked some pretty great reactions. Clark Gregg, who will revisit his role as Agent Coulson in the upcoming Marvel Cinematic Universe adventure, recently responded to a fan's comment about his youthful appearance in the film. Gregg joked on Twitter that the studio didn't need to use any de-aging software on him, and all he had to do was take "a four-day nap".