Ivan Ivanovich (Vostok programme)
Ivan Ivanovich (Иван Иванович, the Russian equivalent of "John Doe") was the name given to a mannequin used in testing the Soviet Vostok spacecraft in preparation for its crewed missions. Ivan Ivanovich was made to look as lifelike as possible, with eyes, eyebrows, eyelashes, and a mouth.
Source: Wikipedia — Ivan Ivanovich (Vostok programme) (CC BY-SA 4.0)