These sleuths should not be underestimated. For this list, well be looking at the greatest, most intriguing, and popular detective characters from film, TV, literature, and video games. Our countdown includes Batman, Nancy Drew, Sherlock Holmes, Veronica Mars, Sam Spade, and more! Whos YOUR favorite fictional detective? Let us know in the comments! Watch more great detective videos here: Top 10 Movie Detectives: