Rebecca

Rebecca is the shipboard artificial intelligence of the UNSC Prowler Red Horse.

Background
Rebecca is commissioned by the Office of Naval Intelligence to monitor the Red Horse during a top-secret mission around the ruins of Installation 04. She replaced the Red Horse's former shipboard AI, Chauncey.

Appearance
She is one of two known AIs to have an avatar with two different, interchangeable appearances. Her first appearance is described as "half-Athena, half-Ares" with a feathered Greek headdress and ancient armor. She could change her appearance to a flabby, middle-aged Mediterranean woman in a flower dress.

List of appearances

 * Halo: Evolutions - Essential Tales of the Halo Universe
 * The Mona Lisa