How Mark Hamill Was De-aged For Young Luke Skywalker In Mandalorian

screenrant.com:

Here’s a breakdown of how The Mandalorian and The Book of Boba Fett de-aged Mark Hamill as young Luke Skywalker using a process that's becoming more and more common in Hollywood. The Mandalorian wasn’t the first time Star Wars had used CGI and de-aging technology to bring back a character from the original trilogy — not even the first time for Hamill as Luke. In 2016’s Rogue One, Star Wars used a CGI mask for a stand-in actor to recreate Peter Cushing’s likeness as Grand Moff Tarkin and superimposed a young Carrie Fisher’s face as Princess Leia with images from Star Wars: A New Hope. Additionally, Star Wars: The Last Jedi used old footage from the original Star Wars trilogy to make young versions of Luke and Leia in a short flashback scene. The CGI Luke Skywalker was featured most recently in The Book of Boba Fett, while he was training Grogu.

The de-aging technology was used in The Book of Boba Fett to bring the young Luke Skywalker back to the screen, prompting many to wonder if Star Wars just killed the uncanny valley. Grogu required Jedi training, and Mark Hamill's Luke Skywalker stepped up to the plate. Until he gave Grogu the ultimatum of either taking the Jedi's path or that of the Mandalorian, stating that there was no in-between. There were vast improvements between The Mandalorian's and The Book of Boba Fett's de-aged Luke. But the real kicker is that Mark Hamill wasn't used at all. Not only was his appearance taken over by AI, but his voice was too.

Related: Mark Hamill Was Told About Luke’s Mandalorian Return Before Season 1

The Mandalorian's CGI Luke Skywalker wasn't initially well-received. So for The Book of Boba Fett, Lucasfilm hired a YouTube deepfaker to bring AI Luke to life. Reactions to the Boba