Series regulars Mireille Enos and Joel Kinnaman will be joined by new cast members Peter Sarsgaard, Elias Koteas and Amy Seimetz this season.
Executive produced by series creator Veena Sud, the fresh episodes will focus on a new case, which will be resolved over the course of 10 episodes, ending with a two-hour finale.
"We learned so much from the first two seasons of "The Killing" and are thrilled to be bringing it back with the elements that the fans loved," Charlie Collier, AMC's president and general manager, said in a statement Friday.
"Veena's captivating storytelling along with the performances of Joel and Mireille, and the rest of the exemplary cast, will remind audiences of what they loved about the series and provide a season of suspenseful television."
"From the beginning, Veena Sud has invested 'The Killing' with some of the richest characters on television, testing and sometimes trampling the traditions of the television procedural -- and we're indebted to AMC for the opportunity to present a third season," said David Madden, president of Fox Television Studios.
"We're particularly excited by the new moves of our returning leads, Sarah and Holder, brought to life so beautifully by Mireille and Joel, as well as the addition to our stellar cast of Peter Sarsgaard in his television series debut, the brilliant Elias Koteas and Amy Seimetz, and a cluster of newcomers whom we hope will dazzle the audience as this new season unfolds."