Trivia: The company that adapted "King of Beasts Go-lion" (Lion Force) and "Dairugger" (Vehicle Force) into "Voltron: Defender of the Universe" also wanted to dub another anime robot series called "Lightning God Albegas," but for some mysterious reason it never did. Some people speculated that the sexual perverted behavior of one of the major characters from Albegas, or the unaesthetic appearance of the six-armed robot may be the reason why the series was never dubbed. Interesting enough, toys based on Albegas were sold under the Voltron name.
Trivia: "Voltron: Defender of the Universe" is a loose English-language adaptation of a 1981 anime series called "The King of Beasts, Go-lion."
Trivia: The reasons why the character designs differ from episode to episode is that several teams of animators worked in different episodes to complete 52 episodes within a six month period. Japanese animators (because of budget restraints and tight deadlines), must complete animation within a short time period, unlike Western animators who have the time and budget to finish their works within a year or two.
Chosen answer: I don't think it's ever said. I always assumed Pidge was a boy, and I'm not sure why. I think because it was a man who did the voice.
Kaite13
She is a girl it is made clear she is a girl in episode 5 season 1. It is also made apparent she is a girl in season 8.