Dengar, also known as Dengar the Demolisher, was a Corellian human bounty hunter operating since the early stages of the Clone Wars. Dengar participated in an operation on Quarzite—during which he served as a member of Krayt’s Claw, a syndicate of hunters including Boba Fett, Bossk, and Asajj Ventress—to secure property valuable to Lord Otua Blank of the planet Quarzite. Dengar also took jobs for clients such as the Grand Hutt Council, fighting against Maul and his Shadow Collective on Nal Hutta.
Dengar remained active through the Galactic Civil War, during which he was one of several bounty hunters hired by Darth Vader to capture Han Solo, captain of the Millennium Falcon. Though Dengar ultimately lost Vader’s bounty to his rival and partner Boba Fett, he was later present with Bossk and Fett in Jabba’s Palace on Tatooine during Solo’s rescue by Jedi Knight Luke Skywalker.
Dengar’s impressive longevity led him to continue his work as a bounty hunter even after the Empire was defeated at the Battle of Endor. Around a year later, he teamed up with other tenured hunters such as Embo when he joined Jas Emari and her crew after the Battle of Jakku.
Here’s the legends story about how Dengar found Boba Fett in the Sarlacc Pit in Star Wars Legends, as well as some Dengar backstory. I hope to see Dengar in The Book of Boba Fett.