Re:Delta-V: Designing the Asteroid Mining Ship 'Konstantin'
by bserge on Tuesday October 13, 2020 @04:11PM
(#24769786)
I believe the last photo is Alexey Leonov possibly with Pavel Belyaev (not really sure), of the Voskhod 2 mission. Leonov was the first person to do a spacewalk.
https://en.wikipedia.org/wiki/Alexei_Leonov
https://en.wikipedia.org/wiki/Pavel_Belyayev (some interesting tidbits about the Voskhod 2 mission there)