Tom Vaughan-Lawlor has confirmed he plays Ebony Maw in Marvel Studios' upcoming Avengers: Infinity War, according to ScreenRant. The actor had previously confirmed his involvement in the film, but not the specific role.
In comic books, Ebony Maw is a member of Thanos' Black Order. That group also includes Corvus Glaive, Proxima Midnight, and Cull Obsidian.
The Black Order were confirmed by Marvel Studios to be a part of the movie at the recent D23 Expo.
Vaughan-Lawlor is best-known for his starring role in RTE Television's Love/Hate, and also appeared in Peaky Blinders and The Infiltrator.
Avengers: Infinity War is scheduled to be released in theaters May 4, 2018.