It’s a harsh lesson made to teach people always to remain vigilant about who can be trustworthy.

These moments of betrayal left audiences stunned as they usually resulted in tragic outcomes.

Ephialtes initially favored the Spartans, wanting to fight alongside them as he idolized their culture.

close up of Anakin Skywalker (Hayden Christensen) in Revenge of the Sith

Image via Lucasfilms

Trevelyan started as Bond’s brother-in-arms, fighting alongside theiconic secret agenton many of their dangerous assignments.

It’s a tragic betrayal with devastating outcomes that all started because one man demanded more money.

Cypher wanted to return to a simpler and more optimistic world to live a life of ignorance.

Ephialtes from 300

Image via Tri-Star Pictures

Yet to achieve this goal, he had to murder and betray the very friends who freed him.

Deep down, however, he harbored a sleazy and cowardly personality.

He was willing to commit any horrible acts necessary inhis evil corporation’sinterests.

Maj. Grant and his men reveal themselves to be working for the murderous Col. Stuart in Die Hard 2: Die Harder

However, Saruman betrayed and attacked his old friend and swore allegiance to Sauron to rule Middle Earth together.

Saruman originally served in Middle Earth as its protector to stop Sauron’s return from happening.

Eventually starting a war to exterminate all his former Jedi bretheran.

Benny (Mel Johnson Jr.) reveals his treachery in Total Recall

Image via Tri-Star Pictures

Anakin was the strongest force userand the prophesied chosen one to bring balance to the force.

NEXT:The 10 Most Heartbreaking Tv Character Betrayals

Alec Trevelyan reveals he’s still alive in Golden Eye (1995)

Commodus kissing Marcus Aurelius' forehead while crying in Gladiator (2000)

Image via DreamWorks Distribution

Dennis Nedry points out that nobody cares about Dodgson

cypher from the matrix

Ripley seizes Burke by the collar in Aliens (1986)

Image via 20th Century Studios

Christopher Lee as Saruaman

Hayden Christensen as Anakin Skywalker in Star Wars Revenge of the Sith

Image via Lucasfilm

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