The 55-year-old actress turned heads in her Vivienne Westwood look, which featured split sleeves and gave many fans Morticia Addams vibes.
Marlee completed her look with a pair of Sophia Webster black velvet platforms with a crystal heel.
The Oscars announced that Marlee, who became the youngest winner of the Best Actress Oscar in 1986 with Children of a Lesser God, will be part of the official “cast” of presenters.
Tune into the 2021 Oscars, starting at 8/7c on ABC!
10+ pictures inside of Marlee Matlin at the 2021 Oscars…