According to Celebrity Net Worth, Wil Wheaton, who famously played himself as Sheldon Cooper's nemesis on "The Big Bang Theory," is only worth about $1 million, and made only $20,000 per "Big Bang” episode (via ScreenRant). Wheaton's per-episode salary comes as a surprise, given his impressive list of acting credits, as well as the salaries of other secondary characters (which we'll get to later).

Per IMDb, Wheaton's been in over 130 productions spanning almost four decades, including the critically acclaimed coming-of-age tale, "Stand By Me," opposite Jerry O'Connell, Corey Feldman, and the late River Phoenix, and also starred in "Star Trek: The Next Generation" from 1987-1994.

In addition to his work on-screen, Wheaton's also a seasoned voice actor, and having worked on multiple video games, including "Ghost Recon 2," "Everquest II," and "Grand Theft Auto: Vice City Stories," and has voiced numerous characters in animated shows like "Teen Titans," "Naruto," "Legion of Superheroes," "Ben 10: Alien Force," "Transformers: Power of the Primes," and more.