Henry was played by Funksaw (HeroBoards Name). He joined early in Season One as a passenger and Communications/Sensors expert. He had a shady past he was running away from and a possible link to the station attack the original group was witness to. First Appearance: Episode 007. Last Appearance: Episode 012. (His In Character depature was official in Episode 015.)
Milo was played by Dale Ward. Milo was one of the original players in the game and did a lot to make it enjoyable. Sadly, Milo's player passed away in December 2006. First Appearance: Episode 001. Last Appearance: Episode 019. (Milo himself was kidnapped in Episode 17, the player also played the part of Morty for Episodes 18 and 19.) Dale's contribution to the game will be missed. Milo's player kept a website with his characters Personal Logs as a way to summarize games, I have kept a copy here: Milo's Logs.
Shr'Kaak was a Vrusk played by Prestidigitator (HeroBoards Name). He was one of the original four players to start the game. His character often provided a calming voice of reason to the other characters. Due to many other real life obligations Shr'kaak's player withdrew from the game. First Appearance: Episode 001. Last Appearance: 041. (His In Character depature was official in Episode 050.)
Lance Corporal Ashcroft was played by RPMiller (HeroBoards Name). He was a Terran Marine that ended up with the group after they found him on a station left to heal (it was known the group was coming) by his fellows. First Appearance: Episode 038. Last Appearance: Episode 054. (His In Character depature was official in Episode 056.)