Idris Elba is going to play fan-favorite character Knuckles in the next Sonic the Hedgehog movie

• Idris Elba will voice Knuckles in "Sonic the Hedgehog 2."
• The actor announced his role in the sequel on Twitter Tuesday.
• Elba joins James Marsden, Ben Schwartz, and more actors.

Idris Elba will be voicing fan-favorite video game character Knuckles in the upcoming Sonic the Hedgehog sequel, Deadline reports.

"Knock, knock..." the Suicide Squad star shared on Twitter Tuesday afternoon, accompanied with, yes, a photo of Knuckles' knuckles.

-Idris Elba (@idriselba) August 10, 2021

"Knuckles is a red echidna and he's the guardian of the Master Emerald in the videogames. He is also known to be hot-headed and a fighter," per Deadline.

Elba joins already-announced cast members James Marsden, Ben Schwartz, Tika Sumpter, Natasha Rothwell, Adam Pally, Shemar Moore, and Jim Carrey in "Sonic the Hedgehog 2."