HELP! Anyone know of Twins/siblings in Apocalyptic (or post) media?

[Kittenwolf]

So, a close friend and I are looking for costume character ideas for a "Post Apocalyptic" themed Halloween Party.
Is anyone aware of any twin, or at least sibling, characters in any apocalyptic or post apocalyptic media? Gender of the characters doesn't matter, and costume that's fun and/or easy to assemble would be appreciated :)

[Kitten Champion]

From what I can think of...

Shagia and Olba Frost from After War Gundam X have a strong sibling connection.

Dianna Soriel and Kihel Heim from Turn A Gundam are identical in appearance (and voice actor) if not technically genetic twins.

Vash and Knives from Trigun.

While again not technically twins, but gender-flipped versions of the same character, there's Fionna/Finn from Adventure Time.

The Twins from The Matrix Reloaded - the ghost-like AIs. Then there are duplicates of Agent Smith -- actually any of the human-type Cylons from Battlestar Galactica have duplicates as well.

[jseah]

The two siblings from Tokyo Magnitude 8.0 anime?

[Shinken]

How about the Apocalypse Twins (http://en.wikipedia.org/wiki/Apocalypse_Twins)?
http://img4.wikia.nocookie.net/__cb20130425003429/marveldatabase/images/9/9f/Apocalypse_Twins_(Earth-616).jpg

[Finn Solomon]

Finn and Jake from Adventure Time! The Land of Ooo is a post apocalyptic wasteland anyway.

[Shinken]

Finn and Jake are not siblings.

[Finn Solomon]

Finn and Jake are not siblings.

http://24.media.tumblr.com/17c7d533cd2606aa4c15f983bf82436e/tumblr_mih95pWtcQ1s1r85co1_500.gif

Lol of course they are.

[Fjolnir]

Finn was raised by Jake's parents, they are bros and brothers

[thorgrim29]

Merle and Daryll Dixon from Walking Dead spring to mind.