Tom Sawyer is a young American child created by author Mark Twain.
Despite only few references to Sawyer in the comic books, Sawyer was added to the film adaptation as an editorial mandate, intending to garner American "youth appeal", which dissilusioned many fans of the source material and was one of many reasons the film is disliked by Alan Moore and Kevin O'Neill. He acts as a student-of-sorts to Allan Quatermain and is a U.S. Secret Service agent who joins the League. He is played by Shane West.
- Despite not being a member of the League in the comics, a framed photograph of an adult detective identified as "Thomas S-" can be seen in the League's office in The League of Extraordinary Gentlemen, Volume II.
Tom Sawyer was created by Mark Twain and appears in The Adventures of Tom Sawyer, The Adventures of Huckleberry Finn, Tom Sawyer Abroad and Tom Sawyer, Detective.