'Westworld' has been hinting at Sunday's big twist all season long - here's every clue we spotted

Warning: Major spoilers ahead for "Westworld."

The seventh episode of "Westworld" ended with a brutal scene involving the murder of Theresa Cullen and the major reveal that Bernard had been a host all along.

During an interview with INSIDER, Jeffrey Wright (Bernard) revealed the key reason why he knew very early on about his character's robot existence.

"There are narrative moments, obviously, in which we drop breadcrumbs," Wright told INSIDER. "So it was necessary that I be aware of that."

We've gone back through all the episodes aired so far and rounded up every possible breadcrumb - big or small - that was given to the audience about Bernard's true identity.

Scroll down for a look.