Robert Downey Jr

Robert Downey Jr. wins his first Oscar for Oppenheimer in Hollywood's greatest comeback from drug addiction

Tiny but mighty

Robert Downey Jr. wins his first Oscar after three decades, thanks his wife and jokes about his childhood

Despite being recognized as one of Hollywood's most adaptable actors, Downey had not won an Academy Award until this win

Robert Downey Jr received nominations for Best Actor for "Chaplin" in 1993 and Best Supporting Actor for "Tropic Thunder" in 2008

Paltrow is an Oscar winner herself, winning the Best Actress trophy at the 1999 Academy Awards for her role in Shakespeare in Love

Before expressing his gratitude to the Academy, Downey said to laughter from the audience, "I want to thank my horrible childhood

I want to thank my veterinarian, I mean wife Susan Downey," Downey said at the beginning of the speech