David is a villain from the Animorphs book series. He is a teenager who unknowingly handed his family to the parasitic aliens known as the Yeerks and was forced to become one of the Animorphs, but ended up becoming one of their worst enemies. He appears in what is known as the David Trilogy: consisting in book 20 The Discovery, book 21 The Threat and book 22 The Solution. He later reappears in book 48 The Return. David never narrates an Animorphs book.