Surprisingly, other than Gold Leader (Angus McGinnis), I didn't recognize any of the other Rebel pilots from Death Star battle in the scene. Even "Wedge" is not played by Denis Lawson, though Lawson did dub over his voice ("That's impossible, even for a computer!")
At the end of the movie, we see three other Rebel pilots greet Luke when he gets back. I think one might be Denis Lawson, (though if he is, he's carrying the wrong helmet)
Any theories as to who was flying the Y-Wing that escaped the Death Star with Luke, Wedge and the Falcon?