Keira Hagai is the daughter of Samos Hagai, and Jak's primary love interest. She is perhaps best known as a talented mechanic, inventor, and racer, having ultimately invented the zoomers, designed and rebuilt a replica of the Rift Rider, and also raced in the Kras City Grand Championship. She is also a forthcoming eco sage. She was joined the Alliance of Nations during the war. She was evidently confident and self-secure, as well as intelligent, though she was constantly frustrated by Daxter's camp attempts of flirting. However, around Jak, she portrayed a reasonably flirtatious attitude, often batting her eyelashes while clasping her hands.