Surprisingly, Weyman hasn't actually been holding this secret for years. In fact, he was only told about the Gandalf reveal during the tail-end of filming The Rings of Power season 2 in Tenerife. "I actually found out when they were about to break down the internal sets for Tom Bombadil ['s] house," Weyman says.

The Rings of Power seemingly confirmed that the Stranger is Gandalf, but there are still hints that he could be another member of the Istari.

Full spoilers immediately follow for The Rings of Power season 2's final episode. The Rings of Power's Daniel Weyman doesn't know if The Stranger/Gandalf will encounter Sauron next season, but he's certainly not ruling it out.