Kolivo
Kolivo, a bounty hunter, is remembered for his past collaboration with Beilert Valance, a former Imperial and fellow bounty hunter. Before the hunt targeting the Sith Lord Darth Vader in 1 BBY, Valance's association with Kolivo was brought up by Cavic, another hunter who previously served the Empire. Cavic referred to Kolivo, along with CT-720, BT-823, and a Nautolan, as a "solid bunch" of formidable bounty hunters.
Behind the scenes
The comic Target Vader 6 features Kolivo. Robbie Thompson wrote it, and Marvel Comics released it on December 11, 2019. Before its release, on December 4 of that year, StarWars.com shared a section of the comic where Kolivo is mentioned.