An android created by Dr. Cranken for Gedow from all the combat data collected from Joe and Silvia's fights. She initially appears shortly after Frost Tiger falls, disguised as Silvia, allowing her to steal Joe's rainbow oscars. As she battles Joe and Silvia, she transforms into other members of Gedow, but is unable to win. Joe tells her that she has no heart, and Rachel begins to question her existence, ultimately leading her to suffer a mental breakdown. She eventually learns what it means to fight with heart, but Dr. Cranken attempts to destroy his failed creation, though she is easily repaired.
Rachel also appears in Red Hot Rumble (which is based on the Viewtiful Joe anime series) as a playable character. During the storyline mode, she acts as an assistant to Captain Blue alongside Sprocket, but is eventually possessed by the ghost Tsukumo and is used to fight Joe and the others. Eventually subdued, Tsukumo leaves Rachel and she returns to normal. Over the course of the game, Rachel expresses interest in various "human" things, such as the idea of a lone hero against an army.
- Bloody Rachael's design is possibly inspired by the robot Maria from the famous 1927 film Metropolis.