Pyro and Engineer are brothers. Originally there were only supposed to be 8 mercs but Engineer asked if his mentally unstable brother could have a job. The rest is history.
Despite appearing and sounding male, RED Pyro is a girl; her parents were Iranian immigrants who tried having a son for years, but all they got were stillbirths and miscarriages. When Pyro was born, they tried to kill her by drowning and pass it off as an accident. Since then, Pyro has developed an imaginary world called “Pyroland”, where she is loved and appreciated by everyone she meets. She always wears a mask and baggy clothes because she’s afraid of being hated by her new teammates and ashamed of her own gender.
RED Engineer and RED Medic are the only ones who know the full story of what happened. During breaks, Medic serves as RED Pyro’s psychiatrist to help her open up and overcome her past traumas. Engineer aids Medic in his quest by acting as RED Pyro’s surrogate father.
Pyro is completely bald under his mask, his hair and eyebrows being permanently burned off. As such, he’s absolutely fascinated by hair, and would like nothing more than to grab someone and use them as a human styling-doll for hours on end, experimenting with lots of pretty ribbons and decorations. Unfortunately, none of his team-mates have enough hair to work with, and strangers always seem to be in a hurry to get somewhere when he meets them.