I think this was the best thing that Irwin Allen ever did. Although the show drifted far away from its original synopsis,the adventures of a family in space, it eventually became the story of a boy and his robot. Bill Mumy became a hot talent in Hollywood after the series and his role as Will as the likeable son is one of TV's most endearing roles. Johnathan Harris was the villain we loved to hate as he became of another of the screen's most versatile character actors. The man showed great talent arguing with an inanimate prop and making it the hero of the show. The unnamed robot, ironically, became more dimensionally than anyone else in the show, and forget Mary Anne vs. Ginger, how many guys had crushes on Penny Robinson than on Judy ? Penny was the adorable ingenue next to the obvious Hollywood presence of Marta Kristen, the first Marilyn Monroe of the galaxy. John and June Robinson, however, slowly became less the leaders and heros of the series as they became closer to Ward and June Cleaver as they spilled out parental advice and punishments. Don West, however, remained mostly the same character without any developments in his character and past, but that can be directly blamed on the series focus between Will, the Robot and Dr. Smith while everyone else became just a little bit more than supporting roles. Despite these few faults, I still think its one of the best things to ever grace television.