Grandson of the famous Koppai scientist Dr. Drake and partner of the ex-ranger turned treasure hunter Don Bergman, nicknamed Dobbs. Yorke is talented at rewiring communication devices. He also works with the veterinarian Nelle. Dobbs, Nelle, and he went to the planet PNF-404 to find treasure to sell to afford food, since their home planet Koppaite is going through a food crisis. He's short and wears a blue space suit and has tired eyes and blue hair and shaved side-part. He also has freckles.