The director of Kiritonov Research Station and a glaciologist. He is male and estimated to be in his 40s or 50s. He has a brown beard and hair, and wears a brown coat, a dark brown sweater, and black pants. He is kind-hearted.

The radio communications officer. He is male and estimated to be in his 30s or 40s. He wears a long blue coat with black gloves and black pants. He wears a black sweater underneath. He is strict but kind and does his best at his job.

His full name is Nikifor Bronislavov. He is a microbiologist. He is male and in his 20s or 30s. He has brown hair that looks wet and wears a brown coat. Underneath, he wears a dark gray sweater, brown boots, and long black pants. He is cheerful and kind.

The meteorological data manager. She is female and in her 20s or 30s. She has long curly black hair and wears a dark purple hat. She wears gray clothes with black outerwear and black pants over them, along with brown boots. She is rude to strangers but kind to those close to her.

A wildlife biologist. She is female and 20–25 years old. She wears black clothes, a black coat, dark red pants, and brown boots. She wears a gray ushanka and has deep crimson hair. She is quiet but can be loud at times. She loves observing animals. She is Tamara Yancheko's younger sister.

A nurse. She is female and in her 20s or 30s. She has light brown short hair, square glasses, blue sanitary gloves, a gray sweater, and dark brown overalls. She seems cold on the outside but is kind at heart.

The deputy director and a climatologist. She is female and in her 25–30s. She has dark red short hair, wears glasses, a red ushanka, and red clothes over gray ones, topped with a dark blue jacket. She wears black pants. She has a prickly personality. She is Klara Yancheko's older sister.

An intern and a university student majoring in meteorology. He is male and 19 years old. He wears glasses, has brown hair, and is wearing green pants and a dark blue and white checkered sweater. He is timid and kind.

A mechanic. He is male and 25–30 years old. He is wearing blue clothes with a red jacket, boots, and brown pants. He occasionally comes up with eccentric ideas, but he is kind and focuses well on his work.

A meteorologist. She is female and 50–60 years old. She has slightly long brown short hair, light wrinkles on her face, and wears a black sweater, a dark purple jacket, jeans, and brown boots. She is sensitive and focuses on her work.