• George Martin (voiced by
Mark Camacho) is the director of the space station. He is in charge of running the station and changing it from night to day. He denies the existence of extraterrestrial life, even when there's proof in front of him, he's always skeptical and holds by his theory. Even when they took over the station on his birthday, he only believes Monica hired a bunch of actors to give him a sort of role-playing adventure as a present. • Monica Martin (voiced by
Ellen David) is George's wife who loves order in her house. She also believes in aliens. • Betty Martin (voiced by
Eleanor Noble) is George's teenage daughter and a manic depressive. She likes music and seems to only enjoy catching up with friends which she has been completely deprived of upon arriving in the station. She's hinted to be very intelligent and sometimes shows rare compassion to her family. • Benjamin Martin (voiced by
Daniel Brochu) George's plump son and a cosmic super-hero fanatic. He is also fond of computers and technology. He shows a more rebellious side of him when he got sent to prison on the station once for stealing a comic his parents promised to buy him for his birthday, even if he did regret it. • Gran (voiced by Sonja Ball) George's mother and the Martin kids' grandmother. She is a fitness fanatic and Monica and her have an antagonistic relationship. • Fax and Goodgrief (both voiced by
Rick Jones) the Martin kids' dog and cat, they almost always end up talking about the events that happened during the episode at the end of it, it is also hinted they may be aliens themselves; and Guy, Dumped by Krach to live on the station. He does all the work except those done by George. It is hinted most of the time that he's either a clone or a brainwashed individual sent to the station by Krach as a prototype for the "perfect multi-functional worker". • Mrs. Schuman (voiced by
Susan Glover) the Martin children's neighbour and teacher back on Earth and on the station. • Bobby Schuman (voiced by Ricky Mabe) Mrs. Schuman's son. Although he keeps a friendly facade in front of the adults, he shows a very sadistic and manipulative side when he's with the other kids and sometimes his mother. As shown when he discreetly bullies Benjamin on earth. Relations with him and Benjamin have greatly improved since he was almost abducted on the station. • Boris Malakoff (voiced by
Bruce Dinsmore) a Russian/Soviet cosmonaut who decides to live on the station after crashing there. He becomes the new pilot of the Earth station shuttle. Boris is the only member of the principal cast who does not appear in all episodes, being introduced in episode 2. ==Episodes==