Zinaida Petrovna Muravyova, a lieutenant colonel and a former communications officer for Facility 3826. She used to belong to Dr. Sechenov’s inner circle; however, they parted ways long ago. Zinaida is tough and strong-willed.

She has an extensive knowledge of the Facility’s work and access to various secret systems and has also undergone rigorous combat training. She is viewed as some kind of local landmark by the majority of the staff and is most commonly known by the name Granny Zina.