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Hey, hey, hey! Wait a minute. Who are you gonna believe? Me or your own eyes?
~ Warren T. Rat.
Gentlemen, cat's out of the bag. Get me that mouse!
~ Warren T. Rat, after his secret is revealed.
Someday, Gussie Mausheimer, someday! And you, too, Mousekewitz--ALL OF YA!!!! I HATE mice!
~ Warren T.'s defeat.

Warren T. Rat is the main antagonist in Don Bluth's 1986 animated film An American Tail. He is a cat in rat's clothing and the leader of the Mott Street Maulers, a gang of dangerous cats who terrorize the mice of New York City. He is accompanied nearly all the time by his incompetent accountant Digit, a small British cockroach.

He was voiced by the late John Finnegan.


Warren T. offers false friendship to Fievel when the two meet and offers to take him to his missing family - yet after gaining Fievel's trust, he cruelly sells him to a sweatshop, when next they meet it is some time after Fievel managed to escape the sweatshop: he sees Warren T. for what he truly is, a cat, and is imprisoned by Warren T. and his gang to stop him telling anyone, however Fievel is released by Tiger - a soft-hearted minion who doesn't share the usual anti-mice feelings most cats do in American Tail.

Warren T. Rat and his gang give chase to Fievel but are caught in a trap by the mice, who have had enough of being bullied. Warren tries to reason with the mice but Tony Toponi knocks Warren's rat disguise off with a slingshot and then the truth about Warren's species is exposed. The mice unleash a mechanical-mouse called the Giant Mouse of Minsk that proceeds to knock Warren T. and his gang off the harbor and into the sea. Before he was chased off he attempted to set fire to the pier; the fire gets blown out by the Mouse of Minsk, but after Warren is defeated a tiny ember is ignited by a kerosene leak and it burns the whole pier down, as his last villainous act. Warren T. was last seen hitching a ride on a boat heading for Hong Kong, along with his gang, whom he assured would find plenty of mice there.


Warren T. Rat is a very greedy, deceitful, manipulative and diabolical individual who likes to think of himself as sophisticated, constantly misquoting Shakespeare. He also plays the violin horribly (though that might be because his fake nose kept getting in the way).




  • Although his true colors are not revealed until near the climax, he is the main antagonist, because he was actually the Mott Street Maulers' boss and had bigger plans than they did. Plus, he was thought to be a friend to Fievel, but is actually against him.
  • He is based on a villain who would have appeared in Don Bluth's Banjo the Woodpile Cat, named Rocko, but was cut when the film was shortened to a half hour special.
  • Strangely, his size differs as the film progresses. In guise, he is as big as an adult mouse. But when his true species was revealed, he is only slightly smaller than the average cat.


           UniversalLogo Animation Villains

Animated Features
Warren T. Rat | Mott Street Maulers (Digit) | Moe | Sharptooth | Cat R. Waul | Cactus Cat Gang (T.R. Chula, One-Eye & Sweet William) | Professor Screweyes | Ozzy & Strut | Hyp | Mutt and Nod | Ichy and Dil | Pterano | Rinkus and Sierra | Dr. Victor Frankenstein | Steele | Niju | Nuk, Yak & Sumac | Mr. Grasping | Toplofty and O'Bloat | Chief McBrusque | Scuttlebutt | Madame Mousey | Twitch | Farley the Fox | Danno Wolfe | Nightmare Train | Botticelli Remorso | Norvirus Raccoon | Percy "King" Dimplewade | Knuckles | Mayor Muldoon

           Bluth Villains

Animated Features
Jenner | NIMH | Warren T. Rat | Mott Street Maulers (Digit) | Moe | Sharptooth | Carface Carruthers | Killer | Hellhound | Grand Duke of Owls | Pinky | Hunch | Frog Bouncers | Grundel Toad | Berkeley Beetle | Mr. Mole | Mrs. Toad | Ms. Fieldmouse | Queen Gnorga | King Llort | Drake | Rasputin | Bartok | Ludmilla | Drej Queen Susquehana | Drej | Preed | Joseph Korso

Cat R. Waul | Cactus Cat Gang (T.R. Chula, One-Eye & Sweet William) | Mr. Grasping | Toplofty and O'Bloat | Chief McBrusque | Scuttlebutt | Madame Mousey | Twitch | Red | Belladonna | Martin Brisby | Dr. Valentine

Video Games
Singe | Lizard King | Borf | Mordroc