Happy birthday to monster lover and moviemaker Guillermo del Toro. The Mexican director turns 52 today. Del Toro’s biggest obsession, monsters and the culture that surrounds them, is currently the subject of an expansive and immersive exhibit at the Los Angeles County Museum of Art — which your weekend editor recently saw and highly recommends for film fans and horror hounds alike (At Home with Monsters is open through November 27). To celebrate Del Toro’s special day, we’re revisiting some of the scariest monsters in movie history. Here are ten of our favorites. What creatures would make your list?