Frank Grillo played Crossbones in a few notable projects (which are streaming with a Disney+ subscription), but he's also one of the actors who have worked with both Marvel and DC. And the 59 year-old actor recently explained why he likes the DCU

"I just love being part of something in the embryonic stage," says the actor, who will reprise his role as Rick Flag Sr. in "Superman" and "Peacemaker" season 2.