Regarded as one of Furry Headquarters' most valuable members Carrie Sierra has had her fair share of work done for Furry Headquarters as both a researcher and spy.
Before joining Furry Headquarters:
- She was born in Redcliff City on [Redacted] [Contact [Unknown] for more information].
- Her family was killed one half by the Anti-Furry Coalition and the other half by the Blackskulls.
- She took a trip to Neo-Japan and took up sword fighting, martial arts, and scientific research before she had heard about Furry Headquarters looking for researchers.
- She was hired by Furry Headquarters and met her favorite director from The Furry Council Dr. Sierra Tango.
After joining Furry Headquarters:
- She was welcomed by and impressed a lot of members with her skill and her custom-made sword.
- She was put into the research team and given the task of small spy operations. She loved doing them until a incident involving a Anti-Furry Coalition train in which she was pushed off and left by a highway to die. She sustained major injuries but she still said:
- "The worst thing they did was break the locket that had the picture of my family in it and destroy the picture. I loved that locket. The Anti-Furry Coalition took my home, killed my family, and destroyed the last little piece I had left of my family."
- The Furry Council took her off spy missions to recover until they felt she was needed again when the Reaper's Mercs under a mind controlled Lucario Cunningham was attempting to destroy Furry Headquarters assets.
- During her missions of spying on the Reaper's Mercs she was ordered to stay just close enough to see what they were doing but just far enough away to avoid putting herself in danger.
- Her task after Vladimir Renscoff took over the Reaper's Mercs was to find out what Thorne Industries and Fredric Thorne were doing as well as find Furry Headquarters new assets and staff and locate the missing staff that had been taken by the Anti-Furry Coalition.