Actor Sullivan Stapleton (Animal Kingdom, Cinemax's Strike Back) is in final talks for a leading role in 300: Battle of Artemisia.

It isn't known exactly what character Sullivan Stapleton will portray in 300: Battle of Artemisia, which takes place before the events depicted in 300. We reported in December that actress Eva Green is in talks to portray Artemisia, although it isn't known if that deal was ever finalized.

RELATED: Hellboy and 300 Games May Be Coming from Dark Horse's New Video Game Studio

Ironically enough, Joel Edgerton, who starred in Animal Kingdom alongside Sullivan Stapleton, was also in talks to star in 300: Battle of Artemisia, although he dropped out to join the Untitled Kathryn Bigelow Project.

Noam Murro is directing 300: Battle of Artemisia from a screenplay by 300 co-writers Zack Snyder and Kurt Johnstad. It isn't known when production will begin on 300: Battle of Artemisia.