The Hollywood actor took home his very first Academy Award Sunday night for his powerful performance in Manchester by the Sea.
As soon as he took the stage inside the Dolby Theatre, Casey couldn't help but give credit to his fellow nominees especially Denzel Washington.
"One of the first people who taught me how to act was Denzel Washington, and I just met him tonight for the first time," he shared. "Thank you. And to all the other nominees, you did great work. I'm proud to be in your company. You guys are very brave and I admire what you do."
Casey gave credit to director and writer Kenneth Lonergan for helping pull off such a critically acclaimed performance.
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He also couldn't help but give credit to his immediate family including brother Ben Affleck.
"Of course, my mother and my father for mostly, usually believing in me in doing this," he shared. "And Ben, I love you. You ain't heavy. Thank you all very much."
The camera then panned to Ben who appeared quite moved by the heartfelt words from his sibling.
"I wish I had something bigger and more meaningful to say, but I'm just really proud to be a part of this community and I look out at all of you and I have this whole year," Casey added during his speech. "I'm just dumb founded that I'm included. And it means a lot to me."
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