3. Dylan O’Brien

He has the right age, the perfect looks for a slimmer superhero and he is currently rising in fame and popularity due to The Maze Runner movie franchise. In The Maze Runner, Dylan proved his acting skills, playing the role of Thomas, the last male to enter the Glade. So, he’s used with tough action and difficult situations already.

In case Nightwing will be a young, cocky and in great shape character, Dylan O’Brien might have the most complete features and qualities to take the role.