The Film: Indiana Jones And The Last Crusade (1989)

The Traitor: Elsa Schneider (Alison Doody)

Who Do They Betray? Indiana Jones (Harrison Ford) and Henry Jones Sr (Sean Connery).

Yes, surely no one would suspect the Austrian ice queen and art professor of being a villain.

But her striking beauty and clear sexual interest (it's revealed she seduced both of the Jones men) blind them to her true intent - to get hold of the Holy Grail for both her own ends and the good of the Nazis.

She and Walter Donavan are revealed to be in cahoots and end up leaving Joneses Junior and Senior tied up and bickering in a castle.

Comeuppance? Elsa dies when she greedily tries to take the Grail out of its temple, causing the place to collapse.

In her attempt to flee, she falls into a huge chasm, never to be seen again.



The Film: The Lord Of The Rings: The Fellowship Of The Ring (2001)

The Traitor: Saruman (Christopher Lee)

Who Do They Betray? Gandalf (Ian McKellen) and the whole of Middle Earth.

Christopher Lee character in Actually Evil Shocker! Okay, okay... He's the respected leader of Gandalf's wizard order, so you can forgive the big G for thinking that Saruman might be able to intercede in the fight against Sauron.

Sadly, Saruman has long been corrupted, convinced that he can spearhead a new age and driven to created an improved race of orcs known as the Uruk-hai, while destroying the local forests to forge weapons of war.

Comeuppance? Imprisoning Gandalf? Destroying the environment? Is it any wonder he ends up on the losing side?

It's not in the theatrical cut, but in the extended Return Of The King, he ends up stranded on his tower at Isengard, stabbed by Grima Wormtongue (Brad Dourif) and plummets to his death on one of his own water wheels.

If only he hadn't had it installed in the first place...

Next: Miranda Frost & Frank Mercer