The answer to the crossword for the term 'Batman Cartoonist' is Kane, which is a four letter word. Bob Kane was an American comic book artist and writer who created the iconic superhero Batman in 1939. He was the main artist and co-creator of the character and wrote many of the stories featuring him. He also created other characters such as Robin, Catwoman, and the Joker. Kane's work has been adapted into numerous films, television shows, and video games.