Rachel (レイチェル, Reicheru) is fictional character from the Ninja Gaiden series of video games by Team Ninja and Tecmo, introduced in Ninja Gaiden in 2004, where she is a sidekick type non-playable character. Rachel is playable in Ninja Gaiden Sigma and Ninja Gaiden Sigma 2, as well as in Musou Orochi 2 Special and Dead or Alive 5 Ultimate.