Volger Armstren: leader of the group of scientists, he, until the end, thought it was wrong to go to the big spaceship, he was against his son's going, and he is against Michael's attempt to go. He believes that humanity should restore itself here, and not care what is up there. But it's strange, he seems to know about something...

 Military Commander: leader of the military group and father of Michael Armstren's mother. He decided to play against Volger's idea to go to the big spaceship to find his daughter.

 Lucio Armstren: leader of the last expedition and father of Michael Armstren, he ascended to the great spaceship to discover the mystery that dwells there. But after his disappearance, he was presumed dead. But he reappeared... Is that monster really him? And if so, what did he see up there to have left him like this?