Kieran Culkin won the best supporting actor Oscar on Sunday for playing a motor-mouthed American tourist in "A Real Pain." A star of the HBO program "Succession," Culkin was a heavy favorite to win after sweeping BAFTA,

Kieran Culkin tried to quit the role of a lifetime. The actor took home the Academy Award for Best Supporting Actor on Sunday night for his performance in "A Real Pain" — a role that also won him a Golden Globe,

Macaulay Culkin couldn't be prouder of his brother Kieran's big Oscar win – even if he was left out of his acceptance speech. Per People, Macaulay and wife Brenda Song shared their thoughts on Kieran's victory in the Best Supporting Actor category at the 2025 Vanity Fair Oscar party on Sunday.