Hayes was the last name of an astronaut on board the ISS during the events of Gravity
Little is known of Hayes' life. It can be assumed that he was an astronaut who was on board the International Space Station at some point prior to or during the events of Gravity. He is known to have been a member of an unnamed Soyuz TMA mission and a member of ISS expedition 42.
Hayes is never seen or mentioned in the film, and his name is only derived from two mission patches seen on L. Demidov's suit.
- "Hayes" may be a reference to American actor Sean Hayes, who is an aquaitance of Sandra Bullock.