Frank Grillo confirmed his journey to DC after he was disappointed by Marvel.
During an interview with ComicBook.com, the actor said, "They never told a story [about Crossbones]," adding, "The mythology of the MCU and just what Marvel has in its pool of characters, it's so deep. Crossbones was there for a minute, but he was supposed to be there longer, then they went the direction they did."
"I think Crossbones serves a purpose, but I think the interesting thing is that if you see how many people around the world have responded to Crossbones, and again, he's on the screen for a very f--king short amount of time, I think there's more there," he went on. "I think there was more meat on the bone. I was disappointed, which is why I went over to DC," the actor said.
Previously in an interview with NME, the 57-year-old said he had initially come on board for a seven-movie deal.
"I would have loved to continue and be a bigger part of what they were doing, but it wasn't part of my journey," he said.