Dark Void features an eclectic collection of characters you will encounter and form relationships with over the course of the story. Ava, your colleague and old flame who is on board the plane with you when it crash lands in The Void serves as the lead lady. As you progress, you learn that Ava has more secrets hidden in her past than she initially told you about, each of which will slowly be revealed before the game's closing credits.
Other characters you will form alliances with in your quest to liberate the humans and defeat the alien forces are Atem, a friend who assists you throughout your adventure and The Survivors, human freedom fighters in search of a safe passage back to Earth. History fans will get a kick out of the appearance of Nikola Tesla, the genius scientist who experimented with electricity and has somehow ended up inside The Void alongside you.
In Dark Void, you team with Tesla to reverse engineer the alien technology and create jetpacks, airships and various other weapons to assist you in your mission. The main villains of the game are The Watchers, an ancient alien race banished to The Void who seek to enslave the human race and take over Earth. Armed with technology far superior than that of mankind's, they simply will not stop until they have eradicated humanity.