Konstantin Igorevich Grom. Senior operative of the criminal police (criminal investigation department) of the St. Petersburg Police Department, police major. A man of strong build with dark brown hair, gray-blue eyes, mustache and beard. There is a small vertical wrinkle under the left eye. He is responsible for his work and constantly disappears from it. An excellent operative. Sometimes he is too harsh in his methods, ready to overstep the bounds of the law for the sake of justice.