Casey Affleck gives #Oscars [1] acceptance speech: "I'm really proud to be a part of this community...I'm just dumbfounded that I'm included." pic.twitter.com/TpDF3LHlkR [2]

— ABC News (@ABC) February 27, 2017 [3]

Casey Affleck took home his first Oscar on Sunday night. The Manchester by the Sea star was practically speechless as he took to the stage to accept the award for best actor. Not only did he give a special shout-out to the rest of the nominees [4] in his category, but he also thanked the film's producer and his brother's close friend Matt Damon for including him on the project. Ben was even seen fighting back tears as he clapped for Casey from the audience.