Mark Hamill’s Twitter account is famous for Star Wars teasers and he continues that rep with his latest post.

Hamill will be returning to play the iconic Luke Skywalker for Star Wars Episode VIII: The Last Jedi, which sees him reportedly training Daisy Ridley’s Rey to be a Jedi knight.

We first saw him in character (for a matter of seconds) at the end of The Force Awakens, but now he has debuted a much darker look than what preceded:

 

The image, which comes via Hungarian film magazine Cinemania Mozimánia, has many fans speculating that Luke may have turned over to the dreaded dark side, and expressing concerns over his fate:

 

 

 

 

 

 

Via Twitter Moments