Paninya

Her parents died in a Train crash when she was young. She lost both of her legs in the crash (and, in the first anime, also lost one arm). Dominic took her in as his daughter and took care of her. He gave her automail limbs to replace the ones she lost.

In the manga
The manga version of Paninya has her lose both her legs in a train accident at a young age. Dominic takes pity on her and fits her with two new automail legs, one of which conceals a carbon blade while the other, a 1.5 inch carbine. Paninya first encounters the Elrics on their trip to Rush Valley. After robbing Ed of his State Alchemist pocketwatch and leading him in a chase all over the city, Paninya is caught by Winry and forced to return the watch in return for introducing the young automail engineer to Dominic.

Paninya appears again on the Elrics' return trip to Rush Valley and aids in their capture of Ling's retainers, Fan & Fu.

Paninya has mentioned that she has a low tolerance for blood and is made uncomfortable by the sight of it.