The actor joins newcomer Naomi Watts, who was announced yesterday. They are part of an ensemble that includes original cast members Shailene Woodley, Theo James, Kate Winslet, Jai Courtney and Ansel Elgort.
Other recent cast additions include Octavia Spencer, Jonny Weston and Suki Waterhouse.
The Divergent Series: Insurgent is being directed by Robert Schwentke from a script by Brian Duffield and Akiva Goldsman.
The Divergent Series: Insurgent raises the stakes for Tris as she searches for allies and answers in the dystopian ruins of a futuristic Chicago. Tris and Four are now fugitives on the run, hunted by Jeanine, the leader of the power-hungry Erudite elite. Racing against time, they must find out what Tris's family sacrificed their lives to protect, and why the Erudite leaders will do anything to stop them.