The upcoming release of Men in Black 3—whose star-studded premiere E! Online will be livestreaming on Wednesday—not only got us thinking about all the awesome aliens the first two flicks served up (hi, Frank the Pug!), but also had us chatting, and eventually debating, over which creatures from other worlds are actually the most memorable.
So take a look and see who we think are the biggest, brightest and sometimes baddest in the galaxy.
And if you agree, great. If not, even better! We'd love to know which sci-fi stars you think should have made the cut. So sound off in the comments below!