Talwyn Apogee is a major support character in Tools of Destruction, Quest for Booty, the comic series, and Into the Nexus. She is a markazian who encountered Ratchet and Clank on their search for the "Lombax Secret", and since served as their close ally and as Ratchet's girlfriend.
Talwyn is the daughter of the famed explorer and artifact expert, Max Apogee. After he disappeared following a space pirate raid, Talwyn was left behind on the Apogee Space Station in the Nundac Asteroid Ring, guarded by Cronk and Zephyr, two ancient war bots. When Ratchet and Clank arrived on the station in their search for the Secret, Talwyn attempted to repel the intruders, until realizing that Ratchet was a lombax, at which point she befriended him. She later helped Ratchet on his search for Clank, when he was abducted by the Zoni, travelling with Ratchet to planet Merdegraw to search. Later, she became the captain of the Polaris Defense Force.
Talwyn is an able combatant, who makes use of a jetpack and laser pistol against enemies. She has a wealth of knowledge about the lombaxes, and can read the lombax language as well as the markazian language. Talwyn is headstrong and brave, but also expresses great concern for Ratchet when he is in danger, a mutual feeling.