[Dr Kain]

I can understand not liking Gai since the writing for him is very inconsistent. One episode he wants to quit the team and take Kaori with him, then the next five episodes he is a complete team player, only to have another episode of him wanting out. However, the reason people like him is because he did break the ranger cast mold at the time. The Soda era of the series featured pretty cookie cutter characters that did nothing to stand out from each other. The moment their team got together they worked as a team until series end outside of the occassional episode where they were brain washed or something. Gai, on the other hand, was consistentely breaking the rules that had been established for the last 8 years of the franchise.