He was an anthropomorphic dog turned into a being made entirely of water, who had the ability to control and alter liquids. Disney's Darkwing Duck: The 10 Best Episodes (According To IMDb) ... the reality that The Liquidator creates isn't too far from the one we're creating for ourselves. In one episode he and his cohorts Megavolt and Quackerjack broke into a bank in St. Canard, only to be confronted by Darkwing.
The Liquidator is a member of the Fearsome Five, and therefore a minion to the Fang Empire.

The Liquidator is one of Darkwing Duck's arch-nemeses. The Liquidator was created for the tv show Darkwing Duck. While he only appeared in six episodes, he was quite popular. Darkwing Duck: Volume 2 (1991) Show & DVD Details Regular Producers: Russ Mooney, Tad Stones, Alan Zaslove Regular Directors: Bob Shellhorn, Mike Svayko, Bob Treat, Mircea Mantta . Bud Fludd, better known as the Liquidator, is a fictional character, a supervillain in the animated Disney television series Darkwing Duck. 9 "Night of the Living Spud" (8.0) When the lonely plant scientist Dr. Bushroot attempts to grow his own wife, he ended up creating a terrifying potato monster that's been haunting our nightmares for years now. Although a relatively popular Darkwing Duck villain, The Liquidator only makes major appearances in six episodes, with five of them alongside the Fearsome Five. Darkwing is convinced that Tuskerninni still hasn't given up his life of crime, but whenever he tries to prove it, the villain has already covered his tracks. Regular Writers: Tad Stones, John Behnke, Rob Humphrey, Jim Peterson, Doug Langdale, Dev Ross / Regular Story Editors: Kevin Crosby Hopps, Duane Capizzi, Tad Stones, Tom Minton It was also great fun to see how he tried to use a walkie-talkie and other gimmicks to try to overcome his blindness and trick his enemies into thinking he could still see. Liquidator was voiced by Jack Angel.
Drake aka Darkwing Duck accidentally gets involved in an Adopt-a-Con program, and who should it turn out to be but his long-time enemy Tuskerninni? Morgana's spell casting needs some work, after she turns Darkwing into a yak and then pudding. Introduces Morgana who has mystical powers, Stegmutt a duck transformed into a dinosaur, Neptunia protector of the sea and Gizmoduck a robotic duck (from Duck Tales).

The Liquidator (voiced by Corey Burton) is a villain from the Darkwing Duck TV series in DuckTales, in which he serves as an antagonist of Darkwing Duck. The Liquidator has the power to control and alter liquids. He was voiced by Jack Angel. Darkwing Duck had always been arrogant and egotistical, and "Duck Blind" forced him to face his limitations like never before. He was an anthropomorphic dog turned into a being made entirely of water, who had the ability to control and alter liquids. With Jack Angel, Michael Bell, S. Scott Bullock, Joey Camen. Directed by Tad Stones, Alan Zaslove.