Valentin Vitalyevich Lebedev (Russian: Валентин Витальевич Лебедев; born April 14, 1942 in Moscow) was a Soviet cosmonaut who made two flights into space. His stay aboard the Space Station Salyut 7 with Anatoly Berezovoy in 1982, which lasted 211 days, was recorded in the Guinness Book of Records.

Alexey Arkhipovich Leonov (Russian: Алексе́й Архи́пович Лео́нов, IPA: [ɐlʲɪˈksʲej ɐˈrxʲipəvʲɪtɕ lʲɪˈonəf]; born 30 May 1934) is a retired Soviet/Russian cosmonaut, Air Force Major general, writer and artist. On 18 March 1965, he became the first human to conduct extravehicular activity (EVA), exiting the capsule during the Voskhod 2 mission for a 12-minute spacewalk.

Anatoli Semyonovich Levchenko (Russian: Анатолий Семёнович Левченко; May 5, 1941 – August 6, 1988) was a Soviet cosmonaut. Levchenko was planned to be the back-up commander of the first Buran space shuttle flight, and in March 1987 he began extensive training for a Soyuz spaceflight, intended to give him some experience in space. In December 1987, he occupied the third seat aboard the spacecraft Soyuz TM-4 to the space station Mir, and returned to Earth about a week later on Soyuz TM-3. His mission is sometimes called Mir LII-1, after the Gromov Flight Research Institute shorthand. In the year following his spaceflight, Levchenko died of a brain tumor, in the Nikolay Burdenko Neurosurgical Institute in Moscow.

Liu Boming (simplified Chinese: 刘伯明; traditional Chinese: 劉伯明; pinyin: Líu Bómíng; born September 1966) is a Chinese pilot selected as part of the Shenzhou program. A fighter pilot in the People's Liberation Army Air Force, he was selected to be an CNSA member in 1998.

Liu Wang (simplified Chinese: 刘旺; traditional Chinese: 劉旺, born in 1969) is a Chinese pilot selected as part of the Shenzhou program. He was born in the Shanxi province of China and was a fighter pilot in the People's Liberation Army Air Force. He was selected to be an astronaut in 1998.

Liu Yang (born October 6, 1978) is a Chinese pilot and astronaut who served as a crew member on the space mission Shenzhou 9. On June 16, 2012, Liu became the first Chinese woman in space.

Yury Valentinovich Lonchakov (Russian: Юрий Валентинович Лончаков; born 4 March 1965) is a Russian former cosmonaut and a veteran of three space missions. He has spent 200 days in space and has conducted two career spacewalks.

Vladimir Afanasyevich Lyakhov (Russian: Влади́мир Афана́сьевич Ля́хов; 20 July 1941 – 19 April 2018) was a Russian Soviet cosmonaut. He was selected as cosmonaut on 5 May 1967, and retired on 7 September 1994. Lyakhov was the Commander on Soyuz 32, Soyuz T-9, and Soyuz TM-6, and spent 333 days, 7 hours, 47 minutes in space.

Steven Glenwood MacLean FRCGS (born December 14, 1954) is a Canadian astronaut. MacLean served as a Mission Specialist on STS-115, which launched on September 9, 2006, and returned on September 21, 2006. He became the first Canadian to operate the robotic arm Canadarm2. On September 13, he performed his first spacewalk, a 7-hour EVA to activate the solar panels on the P3/4 truss – the second Canadian to do so, after Chris Hadfield.

Oleg Grigoryevich Makarov (Russian: Оле́г Григо́рьевич Мака́ров) (6 January 1933 – 28 May 2003) was a Soviet cosmonaut. He was originally part of the Soviet lunar program and was training with Aleksei Leonov for the first manned circumlunar flight. After the success of Apollo 8, however, the flight was cancelled. His first spaceflight was Soyuz 12 in 1973, a test flight to check the changes made to the Soyuz spacecraft after the Soyuz 11 disaster. His second flight was the abortive Soyuz 18a that made an emergency landing in the Altay Mountains, 21 minutes after launch. With his third launch on Soyuz 27 he flew to space station Salyut 6 and landed five days later with the Soyuz 26 spacecraft. His last mission was Soyuz T-3, during which several repairs on Salyut 6 were done. He also served on the backup crews for Soyuz 17 and Soyuz T-2. Altogether he spent 20 days, 17 hours, and 44 minutes in space.

Yuri Ivanovich Malenchenko (Russian: Юрий Иванович Маленченко; born December 22, 1961) is a retired Russian cosmonaut. Malenchenko became the first person to marry in space, on 10 August 2003, when he married Ekaterina Dmitrieva, who was in Texas, while he was 240 miles over New Zealand, on the International Space Station. As of June 2016, Malenchenko ranks second for career time in space due to his time on both Mir and the International Space Station (ISS). He is a former Commander of the International Space Station.

Franco Egidio Malerba (born 10 October 1946 in Busalla, Metropolitan City of Genoa, Italy) is an astronaut. He was the first citizen of Italy to travel to space. After selection in 1989 as a Payload Specialist by the Italian Space Agency (ASI) and NASA, he became a staff member of ASI and was assigned to the NASA Johnson Space Center, Houston, Texas, for training. In September 1991, he was designated Prime Payload Specialist for the TSS-1 Space Shuttle mission. Malerba flew as the first Italian citizen in space on STS-46 (31 July 1992 to 7 August 1992).