Pathfinder Ryder is the human protagonist of Mass Effect: Andromeda. Ryder is one of Alec Ryder's twin offspring and served as a Recon Specialist in Alec Ryder's Pathfinder team. After the arkHyperion arrives at the Andromeda galaxy, Alec Ryder leads the Pathfinder team to scout Habitat 7 for colonization. Electrical storms stranded the team and they have hostile encounters with an alien species called the kett. Eventually, Alec surmised that the kett are alien to the planet as well and were studying a Remnant structure. SAM elaborates that the Remnant tower is creating a dark energy cloud that is disrupting the world's climate with undirected energy. Alec believes turning off the Remnant structure will clear the weather and make it feasible for the Hyperion to extract the Pathfinder team. Alec and Ryder Jr. eventually make it to the Remnant structure's control console and Alec uses SAM to help him interface with the structure. Alec succeeds in shutting down the Remnant structure and stabilizing the world's atmosphere, but activation of the processor also causes its purification field to throw both Ryders off the platform. Ryder Jr.'s helmet is hit by a stray container, damaging it beyond repair. Alec requests immediate evacuation but realizing that they wouldn't be rescued in time, decides to sacrifice himself and give up his helmet to save his progeny. Before Alec suffocates, he passes down the mantle of human Pathfinder to his rescued progeny by transferring SAM's command access onto them.
Pathfinder Ryder commands the Tempest in their father's absence and leads the search for humanity's new home in the Heleus Cluster. To aid with their mission, Pathfinder Ryder is synced with an advanced Artificial Intelligence called SAM.
Ryder can be of either gender. The name, appearance, and background can be customized. The non-selected twin is reawakened out of cryosleep later, is always named Scott or Sara, and will also have a significant presence as the story unfolds. Ryder's mother is Ellen Ryder, and her devastating illness was a tragic blow to the family. Ellen suffered from AEND, a rare terminal neuro-degenerative disorder with no known cure.