Bradley Charles Cooper (born January 5, 1975) is an American actor and filmmaker. He has received various accolades, including a British Academy Film Award and three Grammy Awards. In addition, he has been nominated for twelve Academy Awards, six Golden Globe Awards, and a Tony Award. Cooper appeared on the Forbes Celebrity 100 list three times and on Time's list of the 100 most influential people in the world in 2015. His films have grossed $13 billion worldwide, and he has been placed in annual rankings of the world's highest-paid actors four times.

Cooper began his television and film career in 1999 with a guest role in Sex and the City. In 2000, he enrolled in the Master of Fine Arts (MFA) programme at the Actors Studio. Shortly after, he made his film debut with a starring role in the comedy Wet Hot American Summer (2001) and gained some recognition as Will Tippin in the television series Alias (2001–2006). After his role in the show was demoted, he began to have career doubts; however, he quickly gained additional recognition with a supporting part in the comedy film Wedding Crashers (2005). Cooper had his breakthrough in The Hangover (2009), a critically and commercially successful comedy that spawned sequels in 2011 and 2013. His career progressed by starring in Limitless (2011) and The Place Beyond the Pines (2012).

Cooper found greater success with the romantic comedy Silver Linings Playbook (2012), the black comedy American Hustle (2013), and the war biopic American Sniper (2014), which he also produced. In 2014, he portrayed Joseph Merrick in a Broadway revival of The Elephant Man. He began voicing Rocket in the Marvel Cinematic Universe. Cooper produced, wrote, directed, and starred in the musical romance A Star Is Born (2018). He won a BAFTA Award and two Grammys for his contributions to the film's U.S. Billboard 200 number-one soundtrack and its chart-topping lead single, "Shallow." He has since produced the thrillers Joker (2019) and Nightmare Alley (2021) and co-wrote and directed the biographical drama Maestro (2023), in which he also starred as Leonard Bernstein.

Cooper was named People magazine's Sexiest Man Alive in 2011. He supports several charities that help fight cancer. Cooper was briefly married to actress Jennifer Esposito and has a daughter from his relationship with model Irina Shayk.