In Alan Dean Foster’s novelisation of Alien, Ash describes the Space Jockey’s race as a noble people and hopes that mankind will encounter them under more pleasant circumstances. It also states that they were larger, stronger and possibly more intelligent than humans. Foster’s novelisation states that the Jockey was trying to warn humans away from the Xenomorphs.

In Steve Perry’s Earth Hive, the Space Jockey’s race are referred to as collectors because they collect Xenomorph eggs. In Michael Jan Friedman’s Aliens: Original Sin, the race is referred to as the Mala’kak. According to the comic book The Destroying Angels, the Xenomorphs caused the species to become extinct 1.6 million years ago.

Mark Verheiden’s Aliens graphic novel depict the Space Jockey’s race as malevolent; they refrain from attacking humans due to their immense hatred of their common enemy, the Xenomorphs, but they intend to wipe out and/or enslave humanity once their war with the Xenomorphs is over. In the series, a Space Jockey-like creature communicates telepathically with humans.

It is possible that the Alien Queen came from the Space Jockey and laid all the eggs in that ship. It was as big as the Queen was, the only giant alien in Aliens (1986) was the Queen and strangely there was no trace of the Alien which was born from the Space Jockey.