Lethe

​Lethe ​is a playable character from Fire Emblem: Path of Radiance and Fire Emblem: Radiant Dawn. She is a Cat Laguz from the Beast tribe of Gallia. She is the leader of a small platoon of Gallian soldiers. Lethe has a younger twin sister named Lyre.

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In Path of Radiance, if Lethe and Ranulf share an A rank in Support Conversations, Ranulf will offer Lethe the opportunity to return to Gallia, leaving Ike and the Crimean Liberation Army behind her. Lethe will then decline this offer, promising to defeat Ashnard alongside the Crimean Army.

Lethe appears as a boss in the Radiant Dawn chapter, A Reason to Fight, but the player will neither be required to fight nor defeat Lethe in order to advance through this chapter.