Raka

A spare clone of Rei Ayanami, imbued with a copy of Shinji Ikari's memories. Combines Rei's mastery of the AT field with Shinji's crazy-prepared planning and tactical brilliance. She briefly takes over the command of the Boyz and Gretz when Shinji is overworked.

She has romantic and/or physical attraction to both Rei and Shinji.

Demise
Her soul is unstable. Since the Rei-clone bodies were made with Lilith's DNA, each bears a fragment of Lilith's soul. Each being in a Rei-clone body is constantly mentally assaulted by said fragment, Lilith's goal being to overwhelm and take over so she can walk the earth again. Raka's resolve shatters during the battle inside the Geofront with Kaworu Nagisa, when both Shinji and Rei are pushed to their limits and call out to Lillith for help. Lillith overwhelms Raka and takes over the body. She immediately heads to Misato's apartment and lies in wait for Shinji. When Shinji returns to the apartment after the battle, she attempts to mate with and/or devour Shinji, who initially thinks it is just Raka being Raka. Upon realizing who is truly in control, he escapes with the help of his mini-chainsaw(plus transdimensional chaos powers) and calls for Rei. The two heroes fight against Lillith in Raka's body (with limited assistance from Agent Jiro, Agent Kentaro, and Pen-pen) until the Assault Terminators and Psykana can be mobilized. Raka's body is slain by Plan Zero, but this backfires when Lillith manifests the body of Yui Ikari and continues her rampage.