'Imitation Game' Co-Stars On Benedict Cumberbatch: If He's Not Nominated 'There Is No Justice'

In the powerful and emotionally charged biopicThe Imitation Game, Sherlock's Benedict Cumberbatch stars as the legendary English computer scientist Alan Turing, who helped the allies win World War II by figuring out the secret code used by the Nazis to transmit encrypted messages.

One aspect of the film that has been singled out by many critics is the brilliant and deeply nuanced starring performance from Cumberbatch, who has now entered the awards race and could be looking at an Oscar nomination in the near future.

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A number of Cumberbatch's Imitation Game co-stars stopped to talk to ET at the film's New York premiere, where they all lauded their friend, and explained why he is such a powerful actor.

"I think he's a wonderful actor that never tries to simplify anything," actress Keira Knightley told ET. "He always relishes in the complexities of the characters he plays, and brings great humanity to them."

Co-star Charles Dance, best known for his work as Tywin Lannister on HBO's Game Of Thrones, shared Knightley's sentiments.

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"If Benedict isn't at least nominated for this, then there's no justice," Dance told ET. "Benedict is a phenomenally talented actor, he really is."

Despite praise from his co-stars and critics across the board, Cumberbatch is staying humble and gracious, and says that he hopes all the good buzz will draw attention to the life story of Alan Turing.

"This is a story that is really dear to my heart," Cumberbatch said. "And if it gets out to a broader audience because people are excited about my performance? All the better."

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Check out the video for more from Cumberbatch, Knightley and actor Mathew Goode, who explains why the role of the reclusive Alan Turing fits so well into Cumberbatch's acting wheelhouse.

The Imitation Game hits theaters November 28.

You can follow Zach Seemayer on Twitter @ZachSeemayer.