A Non-Hitchhiker's Guide To Every Alien That's Worth Knowing

You know, just in case you run into one on the street. Watch as humans and aliens struggle for survival on Syfy's Defiance on Mondays starting April 15th at 9/8c.

1. Time Lords

Adrian Rogers / Sci-Fi Channel / BBC / Everett

Time Lords possess a non-linear perception of time and have the ability to travel through time, which makes them horrible at keeping appointments, but awesome if you needed something done yesterday. The particular specimen pictured above makes for a rather interesting travel companion. Oh, and did we mention that he's also a Doctor?

2. Castithans

Syfy

Castithans are an aristocratic race who view themselves as superior to all other species in Defiance. Don't let their ethereal looks fool you. One wrong step around them and you just might find a knife stuck through your back.

Catch Syfy's Defiance on Mondays starting April 15th at 9/8c.

3. Ewoks

Everett

Don't let their cute and cuddly looks fool you. Ewoks are actually vicious, bloodthirsty creatures who participated in the genocide of government peacekeepers stationed on the planet Endor.

4. Klingons

Mary Evans / Ronald Grant / Everett

Despite their gruff exterior, Klingons are passionate lovers of Opera. Carmen anyone?

5. Hutts

Mary Evans / LUCASFILM / Ronald Grant / Everett

If you're ever short on cash and need to borrow a quick buck, the Hutts are the scaly ones to turn to. Just be sure to pay them back or else you'll have alien bounty hunters chase you across the galaxy.

6. Na'vi

20th Century Fox / Everett

They're tall, they're blue and they do this really weird thing with their hair.

7. Wookiees

20th Century Fox / Everett

These hairy bipeds are fiercely loyal creatures. You've never had a BFF until you've had a Wookiee.

8. Vulcan

Mary Evans / PARAMOUNT PICTURES / Everett

Despite their stoic reputation, Vulcans are actually a very emotional race, they just put up a very good poker face.

9. Centauri

Babylonian Productions / Everett

Prominent Centauri display their hair in a peacock-like fashion. The more prominent they are the flashier their hair. What divas.

10. (Queen) Alien

20th Century Fox / Everett

Just run. Fast.

11. Daleks

BBC / Everett

Don't let these overgrown Roombas fool you, they're out on a quest to exterminate all life in the universe. Exterminate! Exterminate!

12. Irathient

Syfy

Irathients are a proud, tribal people, often perceived as feral by others due to their deep love of the natural world and aggressive demeanor. If they were any more one with nature they'd be rocking Birkenstocks.

Catch Syfy's Defiance on Mondays starting April 15th at 9/8c.

13. Predators

20th Century Fox / Everett

Predators are basically the intergalactic version of that cocky jock in gym class. Jerks.

14. Gungans

Everett

All you need to know about Gungans is that they deserve a swift punch in the face should you ever run into one. That is all.