Errol Flynn was an Australian-born actor who became a Hollywood star in the 1930s and 1940s. He was best known for his swashbuckling roles in films such as Captain Blood, The Adventures of Robin Hood, and The Sea Hawk. He was also known for his off-screen antics, which included drinking, womanizing, and brawling. His nickname, 'Swashbuckler Flynn, ' was a reference to his daring and adventurous spirit.