Ethyl

Ethyl is a glowing one in the containment area at the Chop Shop in Underworld in 2277.

Background
Just like her cellmate Meat, Ethyl used to be a regular resident of Underworld before her transformation into a glowing one.

Effects of player's actions
She can be killed with a flamer as the fire goes right through the glass windows.

Appearances
Ethyl appears only in Fallout 3.

Behind the scenes

 * The game files contain an unused ghoul version of her. This female NPC is listed as a member of the Underworld faction and its resident list.
 * Ethyl, along with Meat, remains in the game files of Fallout: New Vegas.