John Barrowman is a Scottish-American actor, singer, and television presenter, best known for his role as Captain Jack Harkness in the popular British TV series Doctor Who and its spin-off Torchwood. Born on March 11, 1967, in Glasgow, Scotland, he moved to the United States at a young age and later pursued a career in entertainment. In addition to his acting career, Barrowman has released several albums and has appeared in various stage productions, showcasing his musical talent. He has also hosted numerous television shows, including talent competitions and entertainment programs, further establishing his presence in the entertainment industry.