Grigory was a nervous man who was afraid of death because when they opened him, he would know the name and function of each organ that would plop out. He tried to steady himself with drink. When Natasha was unable to retrieve her father, Arthur Stengos, from Tranquil Repose through the Courts, Grigory helped her break in to steal his body. He was opposed to her killing a guard, however. They found Stengos had been taken from his casket and found him mutated and being turned into a Dalek. After Natasha killed her father as he had asked, they were captured and interrogated by Takis and Lilt, the security personnel.