Kieran Culkin has won best supporting actor at the 97th Academy Awards, completing his awards season sweep of the category.

Kieran Culkin won Best Supporting Actor at the 2025 Oscars on Sunday for his role in Jesse Eisenberg’s movie, “A Real Pain,” a victory that wouldn’t have been achieved if the star had his way.

Kieran Culkin won the Academy Award for best supporting actor for his role as the descendant of a Holocaust survivor who makes a family pilgrimage to Poland in the dramatic comedy of manners “ A Real Pain. ”