G20, produced by and starring Viola Davis has added an ensemble to its cast. Backed by Amazon MGM Studios and MRC, the film will now star Anthony Anderson, Marsai Martin, Ramón Rodríguez, Antony Starr, Douglas Hodge, Elizabeth Marvel, Sabrina Impacciatore, Clark Gregg, Christopher Farrar, John Hoogenakker and MeeWha Alana Lee.

The extended supporting cast of G20 includes Theo Bongani Ndyalvane, Conrad Kemp, Joseph Steven Yang, Emmanuel Castis, David James, Noxolo Dlamini and Gideon Emery.

G20, which is helmed by The 33 fame Patricia Riggen, will revolve around the titular G20 summit being overtaken by terrorists. Viola Davis plays Danielle Sutton, the American President, who brings all of her statecraft and military experience to defend her family, her fellow leaders and the world.

The script for G20 has been written by Noah Miller and Logan Miller, while Caitlin Parrish, Erica Weiss, and Jason Hall have made revisions. Andrew Lazar will produce under the Mad Chance banner, alongside Julius Tennon and Davis of JuVee Productions.