Sometimes a Star Wars casting update does not arrive with a glossy Lucasfilm press release or a dramatic trade headline. Sometimes it just shows up because the actor is understandably excited and decides to say, more or less, “yeah, I’m in the movie.” That is basically what happened with Matthew Willig, who posted that he will be making an appearance in The Mandalorian and Grogu and thanked Lucasfilm for helping him fulfill “a kid’s dream.” This Looks Like More Than a Rumor at This Point The reason this one feels solid is that it is not just floating around as recycled fan chatter. Willig said it himself on social media, and Jedi News followed that up with a report tied to his upcoming Rebel Scum Con III appearance, stating that he is playing an as-yet unnamed Iktotchi character in the film. That takes this from “internet speculation” to something a…