User blog comment:Paul.rea/Kanima: Who is in the Car at the end of Venomous/@comment-5237627-20120702005325/@comment-71.31.233.29-20120702021537

Peter came in Episode 4 which was long before the resolution of The Alpha Question. I don't think they would wait and bring someone in for Episode 6 as the resolution. That would seem like a cheat to the audience.