Who gave David the rehearsal message

killerbee
MemberOvomorphJune 16, 2012689 Views2 Replies*Spoilers??****
During the openning scenes of the movies David is contacted by someone and goes through a rehearsal on a foreign language. Who was this man and how did he know there would be a living engineer. It was pointed out in another thread that the surving engineer in the cryo-chamber was not hostile till spoken to by David. A lot of people in that thread missed the fact that that was a rehearsed speach given to David. Does anyone remember what the guy who gave David the speach looked like?