Real Name: Unknown
Occupation: Criminal
Marital Status: Unknown
Base of Operations: Gotham
Height: Unknown
Weight: Unknown
Eyes: Unknown
Hair: Unknown
First Appearance: Batman and the Outsiders #9 (April 1984)
Created By: Mike W. Barr

Shakedown was a super-powered mercenary and a member of the Masters of Disaster, who fought the Outsiders, Starman Jack Knight, and Bobo Benetti, among others. He was tremendously strong, almost invulnerable, and could generate powerful vibratory forces. Originally, he had a crush on teammate Windfall, but that diminished after she chose the path of a super-hero. Recently, Shakedown and New-Wave, another of his teammates, kidnapped a child without getting a ransom for it. When Shakedown (apparently) made it clear that he was opposed to taking the baby's life, New-Wave killed Shakedown, drowning him with her water-based powers.