Frank Grillo's role in Creature Commandos is just the beginning of something great for the DCU, and fans are making comparisons across companies.

Frank Grillo opened up about starring in Marvel and DC Studios films and revealing the differences between both universes.

"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.

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