Hollywood action icon Sylvester Stallone has joined the cast of James Gunn's The Suicide Squad.

Ther directed posted a picture on Instagram with Stallone, and the caption read, "Always love working with my friend Sylvester Stallone and our work today on The Suicide Squad was no exception. Despite Sly being an iconic movie star, most people still don't have any idea what an amazing actor this guy is."

Interestingly, Stallone also appeared in Gunn's Guardians of the Galaxy Vol 2, where he played the role of Stakar Ogord. Fans will also see Stallone as a superhero, in a more starring role, when Samaritan hits theaters next Summer.

The Suicide Squad is a follow-up to the popular 2016 DCEU film helmed by David Ayer, and it stars Margot Robbie, Will Smith, Jaret Leto, Idris Elba, Joel Kinnaman, and Taika Waititi. Gunn's screenplay is based on the comic book by John Ostrander.

The Suicide Squad is currently scheduled for release on August 6, next year.