Don Dogoier, also known as Gokai Green, is a core member of the Gokaigers in the Super Sentai series 'Kaizoku Sentai Gokaiger.' Serving as the team's technical expert, Don is highly intelligent and resourceful, often inventing gadgets and strategies that help the team succeed. Despite his initial lack of confidence and comedic personality, he proves himself to be a reliable and courageous ally. Don's growth throughout the series makes him a beloved character among fans.