Professor Hubert J. Farnsworth (voiced by Billy West) is Fry's great (×30) nephew and great (×31) grandson because of time reef paradox. A mad scientist and the proprietor of Planet Express, he alternates between intelligence and amoral senility due to his greatly advanced age, stated to be at least 150 years old on multiple occasions (160 years old as of " A Clone of My Own "). He demonstrates a mastery of any field of science necessary for the series' plots and is suggested to be one of the most brilliant inventors on Earth. However, he falls asleep constantly, and he is implied to have routinely sent his former crews on suicide missions. He wears very thick glasses and has a gift for creating doomsday devices and atomic supermen. He has put at least one parallel universe in peril with his inventions and visited dozens more.