Fat Cat is the archenemy of Rescue Rangers. He is the secondary antagonist of Chip 'N' Dale Rescue Rangers: to the Rescue, and the main antagonist of the TV series, Chip 'N' Dale Rescue Rangers.
His master, Aldrin Klordane is the main antagonist of the pilot. He is a ruthless, criminal mastermind and his plans, nonetheless, go sadistic and dangerous. He hates dogs and he also hates the Rescue Rangers and will stop at nothing to kill them. He has four henchmen that work for him. Their names are Wart, Mole, Mepps, and Snout. And he is also known as fussy, abrasive, treacherous, callous, accountable, testy, finicky, arrogant, timid, cowardly, attentive, tenacious, clever, astute, tough, fearless, adventurous, tidy, cantankerous, austere, temperamental, fiendish, ambitious and truculent.
He is voiced by Jim Cummings, who also voiced another villain in the series, Professor Norton Nimnul.
To The Rescue
In the 5-part episode, "To The Rescue", Fat Cat is more comic relief. Fat Cat appears to be a henchman of Aldrin Klordane and presumed deceased early. He incriminated the detective and Platon in stealing a jewel. Fat Cat then stole the ruby from Klordane himself, just to show up in his own casino and attract the outlaws to himself. However, he was followed by Chip and Dale who then stole the ruby, only for it to be returned to Fat Cat and Chip and Dale to be presumed deceased for Fat Cat.
He then traveled to Chinatown to the Siam Twins for buying a kung-fu fish. As he pay it, Chip and Dale arrived and messed the whole place up, giving Fat Cat time to escape to the dock, where he took a ship full of fish for himself, however, removing Monterey Jack and Zipper's house in process. Chip, Dale, Monterey and Zipper beat Fat Cat and his gang, forcing Fat Cat to retreat and then panic, because it was the sunrise and Klordane would find up the vanishing of the ruby. Luckly, he returned it in time.
Fat Cat makes a cameo appearance in the Darkwing Duck episode In Like Blunt along with the villains, and decides to join with the Commands for the secret S.H.U.S.H. agent list.
In the TV show, with Klordane gone, Fat Cat carries on as an independent big bad, with Wart, Mole, Mepps and Snout present and accounted for.
In the NES game of the TV series, he acts as the final boss of the game and attacks the player with smoke from his cigar.