Leslie Charteris was a British author born on May 12, 1907, in Singapore. He is best known for creating the character Simon Templar, also known as The Saint, a charming and adventurous thief who often fights against injustice. Charteris wrote numerous novels and short stories featuring this character, which became popular in the mid-20th century. In addition to his work on The Saint, Charteris wrote screenplays and contributed to various media adaptations of his stories. His writing style combined elements of mystery, adventure, and humor, making his works appealing to a wide audience. Charteris passed away on April 15, 1993, leaving behind a lasting literary legacy.