Just like Richard Castle, Nathan Fillion isn't hurting for money. According to TV Guide, the Castle star rakes in $100,000 per episode of the hit ABC crime series, meaning that over the course of a regular 24-episode season, he'll make $2.4 million. Not too shabby! For comparison, Nathan earns the same amount as Mad Men's Jon Hamm, but he's nowhere near as valuable as the Desperate Housewives gals, who each bank $400,000 an episode. He's also got a lot of catching up to do with House, M.D.'s cantankerous Hugh Laurie, who scores more than $400,000 an episode.