Vin Diesel really wants to prove that he IS a nerd. He is the voice of Groot in the MCU, claims to have played D&D as a kid, has a penchant for episodic movies, and is the driving force behind one of the better science fiction action adventure series in recent memory. Now he is looking to add "semi-obscure comic book superhero" to his list of nerd franchise titles. And it seems to have worked.
