Red Adder was a human male member of the Nexu Claw criminal gang on the planet Burnin Konn. At one time the gang encountered the smuggler Riley and her sibling, placing a bounty on the pair's head after an incident involving speeders. During the Iron Blockade, Riley's sibling hunted down the gang with the aid of the Ivax Syndicate, killing many of the Nexu Claws. Once the slaughter was over, the sibling approached Red Adder, who initially wanted to kill both Riley and her sibling, but agreed to remove the bounty and leave them alone after Riley's sibiling threatened him with the backing of the Syndicate.