Answer
General Yevgraf Zhivago, played by Alec Guinness in "Doctor Zhivago," is the protagonist's father-in-law and a respected military doctor. He is a complex character, torn between his loyalty to the Tsarist regime and his love for his daughter and son-in-law. Guinness's portrayal captures the character's inner conflict and moral struggles, adding depth to the film's exploration of the Russian Revolution and its impact on individuals.