Robert Eddison credited as playing...
Grail Knight
- Grail Knight: But choose wisely, for while the true Grail will bring you life, the false Grail will take it from you.
- Indiana Jones: [Selecting the plainest cup in the Grail Chamber] ... THAT'S the cup of a carpenter.
- Grail Knight: You have chosen... wisely. But, beware: the Grail cannot pass beyond the Great Seal. That is the boundry, and the price, of immortality.
- Walter Donovan: [Elsa selects the gaudiest cup in the Grail Chamber, for Donovan] This is indeed the cup of the King of Kings.
- [He drinks from the "Grail", and proceeds to age rapidly]
- Walter Donovan: What's happening to me?
- [Panicked, he grabs Elsa while transforming into a hideous aberration. Elsa screams in horror as Donovan becomes a skeletal monstrosity, which Indy wrenches away from her. Donovan is thrown backward and reduced to a cloud of dust, which drafts carry from the chamber]
- Grail Knight: He chose... poorly.
- Grail Knight: I knew you'd come. But my strength has left me.
- Indiana Jones: Who are you?
- Grail Knight: The last of three brothers who swore an oath to find the grail and to guard it.
- Indiana Jones: That was seven hundred years ago.
- Grail Knight: Long time to wait. You're strangely dressed for a knight.
- Indiana Jones: What exactly? A knight? What do you mean?
- Grail Knight: I was chosen because I was the bravest, the most worthy. The honor was mine until another came to challenge me to single combat...
- [offering his sword to Indiana Jones]
- Grail Knight: I pass to you who'll vanquish me.