Kieran Culkin nabbed his first-ever Oscar for his performance in 'A Real Pain,' beating out Yura Borisov, Edward Norton, Guy Pearce and Jeremy Strong at the 2025 Academy Awards

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

After sweeping multiple awards bodies, Kieran Culkin wins Oscar for Supporting Actor for his role in Jesse Eisenberg's 'A Real Pain.'

Pearce said he has an acceptance speech he has "thought about for the last three months now – haven't used it once!"

Kieran Culkin is a household name in the entertainment industry, and not just based on his role opposite Jesse Eisenberg in A Real Pain, for which he's nominated at the Oscars. As a child, Culkin played characters in big-time films like Home Alone and Father of the Bride,