It's official, Frank Grillo is joining the DC Universe.

Grillo revealed in an interview with ComicBook.com that he wasn't happy with how the Marvel Cinematic Universe handled Brock Rumlow, better known as Crossbones.

Here's what Grillo said about his role in the MCU:

They never told a story [about Crossbones]. 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. I think there was more meat on the bone. I was disappointed, which is why I went over to DC.

And, looking at the numbers, Grillo has the right to complain.