Joe Russo: It's a gentleman named Michael Shaw... He's an actor, and we cast a wide net for these characters.

Anthony Russo: In the same way we were approaching Thanos with Josh Brolin to bring sort of a very grounded, realistic performance, we wanted to do that with everyone in the Black Order. So we cast very, very good actors for those. And we had Terry Notary, so Terry worked very closely with every one of them to help them understand, including Josh, to help them understand movement, what the relationship between their body and their characters' bodies are, almost like a puppeteer.