As victor of the Best Actor Oscar past year for his performance in the family drama "Manchester by the Sea", he was expected to present the award in keeping with Academy of Motion Picture Arts and Sciences tradition.
But his nomination and win a year ago were scrutinized after the actor was accused by two women of inappropriate behavior during the filming of "I'm Still Here" in 2010, so it's not surprising the actor wouldn't want to appear onstage in the coming weeks in light of the recent #MeToo movement.
As reigning best actor victor the Manchester By The Sea star and brother of fellow actor Ben Affleck would have been expected to present the best actress award, according to Academy Awards tradition.
Casey Affleck will be sitting out this year's Academy Awards ceremony. "Casey Affleck's not presenting Best Actress".
"Yes, finally - the group that counts among its current members Roman Polanski, Bill Cosby and Mel Gibson has found the one guy who treated women badly and kicked him out", Oliver said in October.
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The 2018 Oscars will take place on 4 March in Los Angeles.
"The story has been corrected to show the name of the mockumentary is I'm Still Here".
Critics have spoken up about about the possibility of Affleck presenting.
It has been a tradition at Oscars that the Best Actor victor presents the Best Actress trophy while the Best Actress victor presents Best Actor.
According to Deadline, the decision not to present the award this year came from Affleck himself, who reportedly withdrew his participation in the upcoming ceremony.