A bounty hunter was an individual who caught fugitives for money.
Space Major Jon Bowman, the commander of the Wayfarer, was a bounty hunter paid by Earth Command to hunt Daleks. (PROSE: Prisoner of the Daleks)
Death's Head disliked being called a bounty hunter, preferring the title "Freelance Peacekeeping Agent". (COMIC: Watch Out – Dragon's Claws Here's Death's Head!, Meet Death's Head [+]1988., etc.)
The Krulius was a bounty hunter who stole aliens from across the galaxy. (COMIC: Monster Hunt)
Mr Plurk and Mr Scozz were bounty hunters. They were hired by Bernice Summerfield's publisher to ensure that she finished The Dead Men Diaries on time. Impressed with the book, they tried teaching Bounty Hunter Studies at the Braxiatel Collection. Mr Scozz was killed in a gunfight during his first tutorial session. Mr Plurk, however, went on to become a professor and the chair of Bounty Hunter Studies at the Collection. (PROSE: The Dead Men Diaries)
COLT-5000 was a cyborg bounty hunter chasing Jenny and Noah across time and space. (AUDIO: Stolen Goods, Neon Reign, Zero Space)
Rogue claimed he was a bounty hunter sent to kill Chuldur living in 1813, something which the Fifteenth Doctor found "so cool". When, however, the TARDIS made a strange groaning noise after Rogue entered it, the Doctor told him that she got upset by bounty hunters, that it was the moral void. (TV: Rogue [+]Kate Herron and Briony Redman, Doctor Who series 14 (BBC One and Disney+, 2024).)