Ask, and you shall receive!
A collage of shots for my Peacebringer, the Solarkinetic!
Petey Quick, SL50 Ene/Ene Blapper - Cynapse, SL50 Inv/Ene Tanker
Witchblaze, Fire/Fire Blaster - Lo Ping, MA/Regen Scrapper
Astre, Fire/Kin Controller - Terri Volta, Rad/Rad Defender - Solarkinetic, Peacebringer
Yusaku's Guide to the Energy/Energy BLAPPER
*Runs from the illegal immigrants*
This any kind of alien, or just space aliens? (As opposed to interdimensional aliens?)
<.<
I'll post both anyhow! 
I have quite a few half-aliens, including my Peacebringer, a renegade Warwolf, and a Rikti-Human clone.
My only complete alien is Outlander. 
Heh... Well, most of mine would be Kheldians. Let's see who I have screenies of...
Violet Flame, Warshade.
Voidbane (Virtue version,) Ve... er, Peacebringer.
Therra Paladina, Peacebringer (and one of the ones I need to update to show everything.)
Non-Kheldian:
Seeker209, view one and two (another that needs updating... and combining, really.) Spine/Inv scrapper.
His nemesis, Sinister Nova - spine/nin Stalker, and the one who set him up to be exiled.
Arichen, Mind/Emp troller
Now, if we want to count extradimensional as "alien," there's another pairing of nemeses...
Ignia Elemenia, who's searching for whoever extinguished her family... who happens to be Incineria.
Well I do have one alien now that I think about it...my warshade Eternal Abyss (later known as the villain Umbra).
In her "Umbra" form opening a present
Her human form
Another look at her "Umbra" form
Kesh Zhox is my little shape-shifting space bug who happened to have merged with a nictus after his home planet was destroyed. The result was a complete merge of the two and Kesh became 'travelers' as Kesh puts it. Here on 'Planet Urth' he is studying Urth hero 'mythology' as well as those heroes of Paragon City... so...that being said, Kesh takes on many many different appearances. 
"Iron Kesh" *blares some Sabbath*
http://i20.photobucket.com/albums/b2...9-18-39-12.jpg
"Kesh Lantern" - Nuff Said
http://i20.photobucket.com/albums/b2...9-18-38-25.jpg
"Kesh (Captain) Valor" (Much <3 to ya Cap, Kesh -will- someday tank as well as you.....maybe.)
http://i20.photobucket.com/albums/b2...9-18-36-59.jpg
Yet another themed costume thread, this one centers around extraterrestrials.
If you have an alien character, hero or villain, this is the place to show them off. It doesn't matter if they look human like Super-Man or weird and green like the Martian Manhunter. Even Kheldian characters are free to show off their stuff. Let's have it!