Warning: spoilers ahead.
When considered formally, the denouement of the first season of The Mandalorian follows a classic pattern for children’s fantasy adventure stories. Let us consider.
The title character himself is clearly the Tin Man. Over the course of the season, he gradually finds his heart.
Greef Karga is clearly the Cowardly Lion. In the course of his character arc, he finds his courage.
The only character I can’t figure out is Cara Dune. If she were the Scarecrow, then her journey would be to find her brain. Maybe it counts that she gains in wisdom over time.
For example, she comes to truly appreciate the title character and his young charge (who is, of course, on a journey to return home), but I’m not entirely convinced.
Oh well, it’s only a theory.