As Ellie runs up the stairs of the observatory after hearing the first audio transmission from space, she runs towards doors with two large glass windows in them. As she opens the doors, a crewman/cameraman is visible in the right window for a brief fraction of a second.
John Hurt (S.R. Hadden) and Tom Skerrit (Dr. Drumlin) were both in 1979's Alien. They both died in each movie as well.