Dr. Horton Letrek is the main antagonist of the Quack Pack episodes, "Island of the Not-So-Nice" and "Heavy Dental". Gallery Letrek devolvedLetrek as he appears in Heavy DentalAdd a photo to this gallery This character article is a stub. You can help Disney Wiki by expanding it. v - e - d Media Quack Pack Characters Donald Duck • Daisy Duck • Huey, Dewey, and Louie • Kent Powers • Antoinette • Gwumpki • Knuckles • Gustav Goose • Ludwig Von Drake • The Roborsons • Helga Needlehopper • Susie McGuider • Alexandra and Cassandra Mergancer • Leslie J. Clark • Raven • Sir Harold • Nelly the Dragon • Cal Crudon • Flint Steel • Beef Jerky • Winston • Dr. William Wu • Colonel • Colonel's Thugs • Horst and Klebb • Henry Villanova • Prince Gaylord • The Claw • Captain Storm • Agent X • The Green-Eyed Monster of Jealousy • Commander Buck Burpelson • Doug Slackwell • Fred • Dr. Horton Letrek • Slab • Moltoc • Gil • Nigel Nightshade • Dr. Homer • Tasty Paste Monster • Vampire • Siegmund • Vector • Viking • Werewolf • The Hermit • Shark • ZO • Dr. Nocturno • Chundel • Dr. Emile Crocker • Dr. Tobar • Germlings • Rocky "The Rocket" Throttle • Andre Demouche • Shorty Hollow • Soo Ling Episodes "The Really Mighty Ducks" • "Island of the Not-So-Nice" • "Leader of the Quack" • "All Hands on Duck" • "Pride Goeth Before the Fall Guy" • "Need 4 Speed" • "The Germinator" • "The Late Donald Duck" • "Tasty Paste" • "Phoniest Home Videos" • "Return of the T-Squad" • "Koi Story" • "Ready, Aim... Duck!" • "Pardon My Molecules" • "Unusual Suspects" • "Ducklaration of Independence" • "Can't Take a Yolk" • "Heavy Dental" • "Duck Quake" • "Long Arm of the Claw" • "Shrunken Heroes" • "Snow Place to Hide" • "Huey Duck, P.I." • "Take My Duck, Please" • "Ducks by Nature" • "Recipe for Adventure" • "The Boy Who Cried Ghost" • "I.O.U. a U.F.O." • "Gator Aid" • "None Like it Hot" • "Ducky Dearest" • "Transmission: Impossible" • "Nosy Neighbors" • "Hit the Road, Backwater Jack" • "Cat & Louse" • "Hero Today, Don Tomorrow" • "Captain Donald" • "Stunt Double or Nothing" • "Feats of Clay" Songs Duck Daze • T-Squad Theme Song See also Duckburg • The Disney Afternoon • DuckTales • House of Mouse Categories: Characters Character stubs Males Disney characters Animated characters Quack Pack characters Villains Scientists Inventors Adults Articles needing improvement TV Animation characters The Disney Afternoon characters Donald Duck universe characters Transformed characters