Another big name has boarded the Aquaman film!

James Wan’s Aquaman is currently deep in pre-production. Over the past few months, we’ve heard casting announcements, and seen posts by the cast and crew on social media. Now, the upcoming DCEU film has added a fan-favorite actor to the mix.

According to The Hollywood Reporter, veteran actor Dolph Lundgren has reportedly joined the film in the role of King Nereus. As of right now, neither Warner Bros. nor James Wan have commented on the casting.

Lundgren is definitely no stranger to big-budget films. The actor is best known for his roles in films like Rocky IV, Masters of the Universe, and The Expendables. He has also been a part of the DC Universe, as he currently has a recurring role as Konstantin Kovar on The CW’s Arrow.

Some comic fans may know King Nereus as the evil ruler of Xebel, who was introduced in The New 52 continuity. He was notably engaged to Mera, and was angered when he discovered that she had found a new partner in Arthur Curry (Aquaman).

With this casting, the James Wan-helmed film adds an actor with significant screen presence, who also brings a level of physicality to the part.

Lundgren joins a cast that currently includes: Jason Mamoa, Patrick Wilson, Amber Heard, Nicole Kidman, Willem Dafoe, Yahya Abdul-Mateen II, and Temuera Morrison.

Aquaman hits theaters on December 21, 2018.