Bentley, who starred in American Beauty, will play Seneca Crane, the head gamesmaker in the 74th Hunger Games. The 32-year-old actor joins Elizabeth Banks and Paula Malcomson, who play Effie Trinket and Mrs. Everdeen, respectively, as one of the few adult characters in the film.
In other Hunger Games news, casting is almost complete for the other district tributes, whom District 12's Katniss and Peeta (Jennifer Lawrence and Josh Hutcherson, respectively) will have to fight to the death in order to be crowned the victor.
Check out the list of tributes below:
Marcel and Glimmer (Jack Quaid and Leven Rambin)
Cato and Clove
Unnamed tributes (Ian Nelson and Kalia Prescott)
Unnamed tributes (Tara Macken and Ethan Jamieson)
Unnamed boy and Foxface (Chris Mark and Jacqueline Emerson)
Unnamed tributes (Ashton Moio and Kara Petersen)
Unnamed tributes (Sam Ly and Leigha Hancock)
Unnamed tributes (Samuel Tan and Mackenzie Lintz)
Thresh and Rue (Dayo Okeniyi and Amanda Stenberg)
Peeta and Katniss (Josh Hutcherson and Jennifer Lawrence)
Hunger Games is set to debut March 23, 2012