Douglas was brought up to the Maverick Hunters due to his abilities with mechanical instruments and his ability to create and upgrade materials. He is the head of Research and Development, the Hunter department that creates Customs and Upgrades and usually supplies the Hunters with necessary equipment. They also make repairs to mecha equipment. Douglas remained with the Hunters during the Earth Restoration Project, aiding the Hunters during the Nightmare Incident by providing Upgrades. His technical knowledge also helped in the speed of the restoration of Earth. After the restoration, he remained with the Hunters as head of Research and Development.

Douglas remains to be the head of R&D, but also spends much of his time working on projects for the Elysium Project, his current project being an atmospheric processor, which may eliminate the need for the atmospheric domes in use now.