Timothy Olyphant has been cast in The Mandalorian Season 2 in an unknown role. Details of Olyphants role has not yet emerged with The Hollywood Reporter stating that:
“It is unknown whether the actor will play a new character or a returning favorite in a new guise”.
According to Slashfilm, Timothy Olyphant is playing an enigmatic character named Cobb Vanth. Vanth was introduced to the Star Wars universe by appearing in Chuck Wendig’s Aftermath book series. Cobb Vanth is a self-appointed sheriff of the Tatooine-based settlement Freetown. The novel also states that he wears a mysterious set of Mandalorian armour that apparently was acquired from Jawas who scavenged the wreckage of Jabba the Hutt’s sail barge.
This armour would be that of Boba Fett as we all saw in Return of the Jedi who apparently fell to his death after falling into a Sarlacc Pit on Tatooine’s Dune Sea.