Kast, Jodo
the bounty hunter wore Mandlorian shocktrooper armor, similar to that worn by Boba Fett, although it is unknown if his armor is as modified. Known as a ruthless and cunning bounty hunter, Jodo Kast patterned his own life after Boba Fett, and often let his quarry assume he was the famous bounty hunter. He often got jobs for his resemblance to Fett, when the party posting the bounty wanted Fett's reputation but couldn't afford it. It was Kast who pursued Ponda Baba through Truuzdann. He later teamed up with Puggles Trodd and Zardra when he was approached by Captain Parlan to hunt down Adar Tallon. When Kast took a New Republic bounty to hunt down Jerresk's pirates, he came under the notice of Dengar, who relayed the hunter's impersonation of Boba Fett to Fett himself. Fett, using the alias Sava Brec Madak, hired Kast to hunt down the ficticious Satnik Hiicrop. Hiicrop was none other than Boba Fett, who managed to capture Kast on Nal Hutta some five years after the Battle of Yavin. Fett injected Kast with a neural toxin to disable him, then blew up the building Kast was lying in. (TM, SCRE, EGC, TOD)
Jodo Kast is unimaginative
Jodo Kast used his Mandalorian armour to collect high bounties due to the reputation that Boba Fett earned. After Dengar (Boba Fett's saviour from the Sarlacc in 'Mandalorian Armour' pt 1 of The Bounty Hunter Wars by K.W Jeter (Bantam Books)) told Boba of Jodo's attempt to kill Dengar.
Boba formulated a plan to 'get' Jodo Kast and carried it out with next to no problems. He gave Jodo a chance to live but Jodo is NOT as hardcore as Boba Fett so of course he died.
Jodo Kast is also in a novel of short stories from Bantam Books, Tales From The Empire. It reveals his true name (which I forgot), Jodo Kast is just an alias. He works for the empire in quite a high ranking position. High enough to go around masquerading as the greatest bounty hunter of all time.
Boba Fett would wooop Jodo Kast's @$$ over and over. Boba Fett is only after credits, whereas Jodo Kast is another sucker after power.