Darkwing Duck - Season 3 - Eps 6: The Frequency Fiends
Darkwing's new weapon hits Gosalyn. Although she's perfectly fine, 3 new beings are created, all of which look like Gosalyn, but have powers based on different frequencies: Heatwave (red), Lightwave (Yellow), and Radiowave (Green). D.W. enlists Megavolt help, but an untrusting Darkwing messes things up (""Positive, Positive, POSITIVE!""). Now the 3 Frequency Fiends are combined into 1 super-being, and it's up to the combined efforts of D.W., Launchpad, Goz, and Megavolt to stop them!
About Darkwing Duck

Title: Darkwing Duck
First Air Date: 1991-09-06
Last Air Date: 1992-12-12
Status: Ended
Rating: 7.3/10 (from 297 votes)
Language: EN
Seasons: 4
Total Episodes: 91
Network: ABC Disney Channel Syndication
Genres: Action & Adventure, Animation, Comedy, Family, Kids
Production Companies: Disney Television Animation
Synopsis
The adventures of superhero Darkwing Duck, aided by his sidekick Launchpad McQuack. In his secret identity of Drake Mallard, he lives in a suburban house with his adopted daughter Gosalyn, next door to the bafflingly dim-witted Muddlefoot family. A spin-off of DuckTales.
Cast

Jim Cummings
Darkwing Duck (voice)

Christine Cavanaugh
Gosalyn (voice)

Terence McGovern
Launchpad McQuack (voice)