Leslie Charteris was a British-American author of adventure fiction, best known for his creation of Simon Templar, the crime-fighting character known as The Saint. Born in Singapore, he penned dozens of stories and novels featuring Templar between 1928 and 1963, establishing one of the 20th century's most enduring literary heroes. The character's popularity led to adaptations across film, radio, and television, making The Saint a global multimedia phenomenon. Even after stepping back from writing the main series, Charteris continued to oversee the character's legacy as an editor for decades.