"He is a really cool character that Frank has been molding," Gunn explained. "The character's also in Superman, and he's an incredibly important part in Peacemaker. He is one of the primary characters in Peacemaker season 2. So we get to see this character from different angles, and he is not simple."

As the new universe of DC movies and shows kicks off this year from studio co-heads James Gunn and Peter Safran, viewers should expect one constant on screen across the first few projects: Frank Grillo.