Dr. Elsa Schneider (portrayed by Alison Doody in the film) is an antagonist and femme fatale in Indiana Jones and the Last Crusade.
Elsa is Austrian art professor who desires the Grail, and like Walter Donovan, she keeps her involvement with the Nazis a secret. Unilke Jones' other two love interests in the films, Marion Ravenwood and Willie Scott, Elsa is a major antagonist She is revealed to have seduced both Joneses throughout the film, Henry first and then Indiana.
Instead of being inherently evil, she simply sees to do anything to get the grail, even if it means allying with the Nazis even though she disagrees with their practices. Later, her character is redeemed when she picks out a false holy grail for Donovan, and watches as her employer decays before her eyes. Afterwards, she mistakenly crosses the temple's seal with the Grail in hand, causing the temple to collapse as she drops to her death in the resulting chasm when attempting to retrieve the Grail instead of holding onto Indiana.