Sergei Krikalev

Sergei Konstantinovich Krikalev (Russian: Сергей Константинович Крикалёв; born 27 August 1958) is a Russian mechanical engineer and former cosmonaut. He is a veteran of six spaceflights, including two long-duration missions to Mir, two short-duration missions aboard NASA's Space Shuttle, and two long-duration missions to the International Space Station (ISS).

On STS-60, he became the first Russian cosmonaut to fly on the Shuttle, and on STS-88, he helped connect the first Russian and American ISS segments—becoming, alongside mission commander Robert Cabana, one of the first people to enter the station. He later joined the ISS's first long-duration crew, Expedition 1, and returned as commander of Expedition 11.