Lou Costello was a prominent American comedian and actor, best known for his partnership with Bud Abbott in the famous comedy duo Abbott and Costello. Born on March 6, 1906, in Paterson, New Jersey, Costello was raised in a large Irish-American family. He began his career in vaudeville and later transitioned into film and radio, where his comedic talents quickly gained popularity. The duo's most famous sketch, "Who's on First?" remains a classic of American comedy. Over the years, Costello became renowned for his unique style, characterized by his exaggerated expressions and humorous misunderstandings. His on-screen persona often portrayed a bumbling, yet endearing character, which resonated with audiences. Together with Abbott, Costello starred in a slew of successful films during the 1940s and 1950s, solidifying their place in cinematic history. Despite their professional successes, Costello faced personal struggles, including health issues and family hardships. His career experienced ups and downs, especially after the duo parted ways briefly. Lou Costello's legacy, however, continues to live on, as he is remembered as a trailblazer in comedy who helped shape the genre for future generations. Lou Costello was born on March 6, 1906, in Paterson, New Jersey, into a large Irish-American family. He began his career in vaudeville and quickly transitioned to radio and film. Costello was part of the iconic comedy duo Abbott and Costello, known for their quick-witted banter and memorable routines, particularly the famous "Who's on First?" sketch. Despite facing personal challenges and health issues, Costello's comedic legacy remains influential, making him a lasting figure in the history of American comedy.