An epic bad guy deserves an epic yell, as we learn from William Shatner's Captain Kirk in 'Star Trek II: The Wrath of Khan' when he gives that now infamous "KHAAAAAAAN" scream. Ricardo Montalban played the villain, who sets out to take his revenge on Kirk for exiling him in the 1967 'Star Trek' TV episode titled "Space Seed." Fifteen years later Khan reappears and he's not happy with being sent off to create a new civilization on Ceti Alpha V -- especially since the planet turned into a desert and almost everyone, including Khan's wife, was eaten by Ceti eels. Yeah, that's enough to make anyone into a jerk for a while.