Cassandra-075

Cassandra-075 was a SPARTAN-II supersoldier who was severely crippled by the augmentation procedures. As a Spartan, she closely knows John-117. She is also familiar with Sergeant Avery J. Johnson.

Conscription
Cassandra-075 was abducted and conscripted into the SPARTAN-II program by Dr. Catherine Halsey in 2517 when she was just six years old. Cassandra was then taken to the planet Reach and was trained by the AI Déjà and Chief Petty Officer Mendez, along with the rest of the SPARTAN children. In 2525, she did not successfully complete the subsequent augmentation procedures.

Recovery
Near the end of the Human-Covenant War, Cassandra was residing in the confines of the M2SL Recovery Station, undergoing myriad recovery procedures from her failed augmentation procedures. Shortly before the Battle for Earth, Cassandra wrote and sent a letter addressed to the Master Chief.

List of appearances

 * Halo 2
 * Conversations from the Universe
 * Scanned