Grigori Rasputin is a fictionalized version of the historical Russian mystic and adviser, appearing in Fate/Grand Order as a major supporting and antagonistic figure connected to the game’s larger cosmic conflict. In the story, he is associated with the Priestess/Alter Ego and serves as an important agent within the overarching narrative, often acting with enigmatic motives. His role blends religious authority, manipulation, and hidden allegiance, making him a mysterious presence whose actions influence major events in the main storyline.