Another bounty hunter recruited by Darth Vader to hunt down Han Solo during Episode V — The Empire Strikes Back, Bossk is another fan-favorite character from the original trilogy who could pop up in The Book of Boba Fett.
Bossk is a reptilian humanoid alien and has a reputation as one of the most feared bounty hunters in the galaxy, known for his effectiveness at killing Wookiees.
Beyond simply being a bounty hunter, Bossk also has a prior connection to Boba Fett, having mentored Boba following his father Jango’s death when he was a child during the Clone Wars era.
During the Clone Wars, Bossk worked alongside a group of Bounty Hunters, who took Boba in and helped groom him into becoming a bounty hunter himself.
Now that Fett appears to be set on heading his own crime syndicate, he’ll definitely need some muscle to help him solidify his power, and similar to the logic behind recruiting someone like Mayfeld, Boba may bring in his old friend Bossk to help him in his takeover of the Hutt crime family.