On Hostages, Dylan McDermott plays Duncan Carlisle, a rogue FBI agent heading up the world's slowest-moving presidential assassination plot. But just the other day, watching an episode of Fox's New Girl, I had a case of celebrity double-vision when Dermott Mulroney showed up in a guest role--McDermott and Mulroney are frequently confused (there's even been an SNL skit about this phenomenon), but they're far from the only ones. Let's take a look at some of Hollywood's most easily mixed-up faces.
Which celebrities do you always get confused? Who did we miss here? Tell us below.