Robert Downey Jr has clinched the prestigious Oscar for Best Supporting Actor for his portrayal of Lewis Strauss in the Christopher Nolan-directed biopic Oppenheimer, at the 96th Academy Awards held in Los Angeles.

In Oppenheimer, Downey Jr brings to life the character of J Robert Oppenheimer's nemesis, portrayed by Cillian Murphy. This victory marks Downey's maiden Oscar win, following nominations in 1993 for Chaplin and in 2009 for Tropic Thunder.

The actor emerged as the frontrunner for the award, having already secured several significant Best Supporting Actor accolades, including the Golden Globe, Bafta, and Screen Actors Guild awards for his remarkable performance. Despite facing stiff competition from acclaimed actors like Robert De Niro, Ryan Gosling, and Mark Ruffalo, Downey Jr's portrayal stood out.

During his acceptance speech, Downey Jr expressed gratitude towards his "terrible childhood" and the Academy, humorously prioritizing them in that order. He also thanked his wife, Susan Downey, affectionately acknowledging her support and influence in his life.

Downey Jr revealed a "little secret" during his speech, admitting that he needed the role in Oppenheimer more than it needed him. He credited the experience with making him a better person, emphasizing the transformative impact it had on him.

This triumph marks a significant milestone in Downey Jr's illustrious career, showcasing his versatility and talent as an actor. As he stands on the Oscar stage, Downey Jr's victory serves as a testament to his dedication and skill in bringing characters to life on screen.