Sexy Aliens: 23 Heavenly Bodies from Sci-Fi

Played by: Henry Cavill
Film: Man of Steel (2013)
With a pec-hugging new Supersuit, the Brits' take on the all-American (by way of Krypton) hero puts the ''S'' in sexy. —Lanford Beard

Played by: Zachary Quinto
Film: J.J. Abrams' Star Trek series (2009-present)
Spock may be without emotions, but that doesn't mean we aren't a little hot-and-bothered by his finely chiseled features. —Lanford Beard

Played by: Morena Baccarin
Show: Firefly (2002-03) and Serenity (2005)
Flinty, self-aware, and smoking hot prostitutes have a great history in Hollywood's Old West (Stagecoach, Destry Rides Again, Unforgiven, et al.), and the formal, geisha-like Inara took the ever-worldly hooker to the off-world frontier in Joss Whedon's cult favorite space Western. —Geoff Boucher

Played by: Xenia Seeberg
Show: Lexx (1997)
Bred to be a perfect wife, Xev was portrayed by multiple actresses during Lexx's four seasons, but Seeberg's was the only one who went through a machine called the Lusticon, intended to transform her into a love slave. Need we say more? —Lanford Beard

Played by: Jason Behr and Katherine Heigl
Show: Roswell (1999-2002)
Forgetting their stone-cold looks, these royal twins had touch-based powers — many of which could be used as aphrodisiacs. Max could make his girlfriend's skin glow through touch sex, and Isabel could set the perfect ambiance for a date (from candle flickering and turning on music to adjusting her nail polish and lipstick shade) on any whim. How could we resist? —Lanford Beard

Played by: Yvonne Craig
Show: Star Trek original series (1969)
Slave Leia gets all the cosplay love, but she was hardly the first kept woman in space — years before, geeks got an eyeful of this green temptress. Though she only appeared in one 1969 episode, her vampy mash-up of Ginger, Mary Ann, and the Wicked Witch was enough for to leave a lasting impression. Bonus: Craig also played Batgirl on the Batman TV series and canoodled with the King in two Elvis Presley movies. —Geoff Boucher

Played by: Tricia Helfer, Lucy Lawless, and Grace Park
Show: Battlestar Galactica (2004-2009)
Cerebral villainy just doesn't get any hotter than this robotic trio, who have been vexing humanity since their fellow Cylons wiped out mankind in an all-out war. (Okay, maybe Boomer isn't a complete villain...but she has done some very bad things.) —Marc Bernardin

Played by: Jeri Ryan
Show: Star Trek: Voyager (1995-2001)
Starfleet uniforms have always been a little snug, but they're nothing compared to the bedazzled catsuit Ryan strutted around in as the Borg refugee who joined the crew of the Starship Voyager. —Marc Bernardin

Played by: Jane Fonda
Film: Barbarella (1968)
The swingin' '60s definitely needed its own sci-fi siren and Jane Fonda stepped up to the plate. Just look at the opening credits — sultry (and corny) is as sultry does. —Marc Bernardin

Played by: Billy Dee Williams
Film: Star Wars: Episode V — The Empire Strikes Back (1980) and Star Wars: Episode VI — Return of the Jedi (1983)
One can't deny the intergalactic swagger of this Cloud City administrator and one-time hustler. Just listen to this pick-up line: ''You look absolutely beautiful. You truly belong here with us among the clouds.'' That would totally work in your average sports bar...in the clouds. —Marc Bernardin

Played by: Jeff Bridges
Film: Starman (1984)
Soft and dewy like a baby duck, Bridges earned himself an Oscar nomination for his performance as a stranded alien who takes the form of a widow's (Karen Allen) dead husband. Of course, she's got to road-trip him to rendezvous with his mothership — and fall in love with him en route. Easily the cuddliest of John Carpenter's flicks, due in great part to Bridges' wide-eyed innocence. —Marc Bernardin

Played by: Natasha Henstridge
Film: Species (1995)
A woman created using DNA codes from outer space that has no problem with nudity and really likes to have sex? So what if she's prone to killing her mate afterwards? For many a movie-going geek, that was a deal worth making. —Marc Bernardin

Played by: Ornella Muti
Film: Flash Gordon (1980)
As the daughter of Mongo's despot Ming the Merciless, Aura was used to getting whatever she wanted. Lucky for us, she wanted barely-there outfits — all the better to bewitch lunkheaded quarterback-heroes from Earth with. —Marc Bernardin

Played by: Christopher Reeve
Film: Superman (1978)
Despite standing for truth, justice, and the American way, the Big Blue Schoolboy (né Kal-El) is indeed an alien. An alien who will compress coal into diamonds, (usually) refrain from using his x-ray vision to see through clothing, and turn back time to save the woman he loves. Also, he's built like a friggin' linebacker. —Marc Bernardin

Played by: Christopher Eccleston
Show: Doctor Who (2005)
A little bit freaky, a little bit scary, the time-traveling Doctor got a facelift for this 21st century reinvention of the classic British sci-fi show. And Eccleston plays him like a pan-dimensional Puck. Besides, a good leather coat always works wonders. —Marc Bernardin

Played by: Milla Jovovich
Film: The Fifth Element (1997)
Everyone in this movie keeps referring to this red-headed nymph as ''the perfect being.'' Now, she may seem about as smart as a box of hammers, but she definitely lives up to the hype on a physical level. —Marc Bernardin

Played by: Michael Dorn
Show: Star Trek: The Next Generation (1987-1994)
I'm sure it'd piss off Commander Riker, but this Klingon was the Enterprise's real tall, dark, and handsome...especially once he got rid of that beauty pageant hairdo and went with the bad-arse warrior braid. (That's right...warrior braid. All the cool warriors are wearing 'em.) —Marc Bernardin

Played by: Lara Flynn Boyle
Film: Men in Black II (2002)
Even though some might say that the one thing missing from Ms. Boyle's alien-baddie arsenal was a cheeseburger, she still brought the slink-and-seductive to this Will Smith sequel. —Marc Bernardin

Played by: Terry Farrell
Show: Star Trek: Deep Space Nine (1993-1999)
This tall drink of synthehol is a symbiote — which, in Star Trek-ese, means that she's got a little slug living inside of her. And that's a joke I'm just gonna let sit right there, unmolested. —Marc Bernardin

Played by: Joe Morton
Film: The Brother from Another Planet (1984)
If the cliché holds that the ladies love the strong, silent type, then it's no wonder that Morton's mute visitor makes the list — and his preternaturally expressive eyes definitely get the job done. —Marc Bernardin

Played by: Jane Badler
Film: V (1984)
You know, if more lizard-y alien conquerors took on hottie disguises like this, they'd have a much better chance at pacifying the citizenry. —Marc Bernardin