‘Game of Thrones’ Season 4 Spoilers: Lena Headey Leaks Episode 8 End, Major Character Reveal Confirmed?

“Game of Thrones” Season 4, episode 8, “The Mountain and the Viper,” featured shocking deaths and a brutal final scene. While fans were left gasping, it turns out Lena Headey, Cersei on the show, leaked the end of trial by combat months ago.

Warning: Full “Game of Thrones” Season 4 spoilers ahead.

Either Headey’s Instagram is oddly coincidental or the actress doesn't mind leaking a few spoilers for fans who are paying attention. Two months ago, Headey posted a few photos of herself and Pedro Pascal, the actor who plays Oberyn Martell, the Red Viper. One upload in particular has caught everyone’s attention after the end of “The Mountain and the Viper.”

In the black and white photo, Headey has her thumbs over Pascal’s eyes and mimicking a squeezing motion. The image is exactly how the trial by combat between the Red Viper and Ser Gregor Clegane, the Mountain, ends. Throughout the fight, Oberyn is demanding a confession from the Mountain that he killed Ellia Martell. As the Red Viper gains the upper hand and is about to kill the Mountain, the massive man trips Oberyn and proceeds to crush his skull between his hands. The Red Viper dies, as does the Mountain, and Tyrion is found guilty in the murder of Joffrey.

Pascal also had some fun on social media following the end of “The Mountain and the Viper.” In one photo uploaded to Instagram, Pascal is posing with Hafþór Júlíus Björnsson, the Icelandic strongman who played the Mountain, and followed up with a few tweets about the episode and grim end of Oberyn.

With Headey not worried about sharing a few “Game of Thrones” Season 4 spoilers on her Instagram for astute fans, it seems likely that another questionable photo posted by the actress is an actual spoiler. There was plenty of speculation about a photo posted by Headey in April that could reveal a major character from the “A Song of Ice and Fire” series.

The photo is of a heart made of stones, and for “Game of Thrones” fans who have read the book, many concluded Headey was revealing Lady Stoneheart, the resurrected Catelyn Stark, will appear in Season 4. It would make sense for the character to appear in the "Game of Thrones" Season 4 finale, as she appears at the end of “A Storm of Swords,” but series creators David Benioff and D.B. Weiss may have had other plans for Lady Stoneheart. If Headey was willing to give away the end of the trial by combat it seems likely she would coyly reveal Lady Stoneheart, a major character and plot twist for the “Game of Thrones” series.