The Heroic Man. He's human. He's brave, handsome, and suave. He's the star of a wildly popular reality-based entertainment series in which he travels around the outskirts of the galaxy, explores ancient ruins, gets into all kinds of trouble, and saves himself with his charm and finely-choreographed action sequences. He's sort of a cross between Lara Croft and Steve Irwin. He's also a fake. Advance teams go in ahead of him to scout camera locations, find and childproof anything truly life-threatening, set up traps if there aren't any, deal with the locals, and generally make him look good and produce an exciting program. This is not commonly known. He has a reputation as a hero and a leader of men. When the others discover he's with them, they will look to him for guidance. The lounge singer/sex kitten/actress will look to him for career advancement. Once the stage management of his show is revealed, there will be suspicion that he is responsible for the wreck. He will most likely die trying to demonstrate that he really can pull off heroic action as on his show.

Petey. He's another Gillig, the personal manservant of the zillionaire and his wife. He exists mainly so that when the derelict's AI reactivates, it can detect and kill him, thinking him to be an invader. This is one of the first signs of life from the ship. Willy's existence depends on convincing the AI he's not the enemy. Knowing that they need to do that depends on Petey biting it.

The saboteur. This nonhuman female is the instigator of the predicament. She was hired by one of the zillionaire's business rivals to get him out of the way and out of touch long enough for the rival to take over his company. The saboteur would gladly have killed the zillionaire, but the job specifically precluded that. The rival was not willing to use murder as a business tool, and wanted the zillionaire to suffer the loss of his riches once they were gone. She used an inside man to gain access to the cruise ship's navigational computer, so as to force a misjump. She planned to keep the ship disabled for six weeks or so, then release control so it could be "repaired." The derelict was as much as surprise to her as to everyone else. Her two goals are to keep the zillionaire alive and to keep him incommunicado until a certain date and time. This is at odds with the goals of the others, and therefore casts her as the antagonist.

The engineer. This poor sod is the saboteur's inside man. Also nonhuman, he was seduced by the saboteur the night before the cruise ship launched. She infected him with a mecha-virus, an engineered disease which would lay dormant in his system as long as it received regular electrochemical signals. When the signals stop, the virus activates and kills the host. In the meantime, it is undetectable and actively evades the immune system. His only hope for survival was to agree to take the saboteur on board and help her disable the ship. He gave her the access she needed to plant an override device, and agreed to stifle repair progress as long as she told him to. He's feeling terribly guilty about all those people dying, but remains under the saboteur's control. He'll do whatever he needs to so that the virus doesn't activate. Until she kills him.

The other one. I'm not sure why this character exists yet. I had the idea for her and decided to throw her in. Her species, instead of developing vocal cords, developed the ability to generate and detect electromagnetic fields. They speak to each other by radio. To an outside observer, this appears to be telepathy. It isn't. They can detect the electrical activity in other people's brains, but they can't read minds. That would be like trying to understand what is on a computer's monitor by listening to the CPU fan. Most people don't seem to grasp this distinction and are forever asking them, "What number am I thinking of?" This annoys them greatly. They speak via a translator, which converts speech into EM and vice versa. More a transducer, really. The saboteur may perceive her as a threat, or she may just do something stupid and die.