Butch (Barry) Wilmore – he flew in 2014/2015 and was a machine at getting science done super fast plus so much fun to work with. He has a really funny accent too – from Alabama. And he tried to do an Australian accent to wish me happy birthday from space hahahahaha 😀
And Sergei Krikalev – until recently he had the record for the longest time in space ever by any human and he has been on Mir and ISS and all the most important space missions. He was also stuck in space when the USSR collapsed… they were kind of busy so they just left him up there 😮 😮 😮 He is the nicest, most humble guy in real life and he was one of my teachers at space university in Moscow. So intelligent and such a superhuman!