The Royal Herald, Singing Classmate in Play, Uncle Bocks, Uncle Schmeeze, Voice from Globe, Waldo F. Sterling, The Wickershams Stephanie D'Abruzzo – Little Cat B, Little Cat S, Jane Kangaroo, Max the Dog (1998), Pam-I-Am, Sarah Hall Small, Admiral Abigail Breeze, Annie DeLoo, Backup Singer, Bunny, The Cheese, Civil Servant #4, Daisy-Head Mayzie, Dolores Nooly, Dr. Gazeat, Elise, Eskimo Kid, Fiona Phish, Goofy Gargaloof, Green-Tufted Sneel, Happy Announcer, Heather Tidbiddle, Iguana from Xanadu, Lady Fretibula, Lady from "Up With Folks", Lulu, Ma Blozzit, Mandy, Mom Jalloo, Morton's Yellow Friend, Mrs. Dorfman, Nola Nicola Raphaella Miraldo, Poodle That Doodles, Sally Spingel-Spungel-Sporn (in "Max the Hero" and "Horton Has a Hit"), Space Creature, Sue Snue, Tallullah, The Travel Poohbah, Web-Footed Batula, White-Tuffted Floozle Bird John Kennedy – Little Cat C, Horton the Elephant, Mr. Knox, Norval the Fish, Sam-I-Am, Felix Finkledooper, Milo, Alvin, Announcer, Armand, Backup Singer, The Birthday Bird, Celli, Delivery Bird, Downer Than Down Whozit, Earl, Flitzpizzle, The Grinch (assistant in "The Guest" and "There is Nothing to Fear in Here"), Hairy, Herbie Tidbiddle, Horace P. Riddley, Irish Setter, Julian Jeremy Jaroo Jalloo, King Lindy of Lime, Little Wimpy Guy (voice), Man from "Up With Folks", McZuff, Money Whozit, Mr. Dorfman, Muckster, Narrator, Nervous Whozit, Picnic Bug, Raffle Ticket-Selling Kid, Rock Singer, Royal Archer, Singing Lion, Spaceman, Thaddeus, Uncle Docks, Uncle Dutter (assistant), Uncle Norton the Elephant, The Wickershams, Yapper-Nap Kathryn Mullen – Little Cat A (1996–1997), Junior Kangaroo (1996–1997), Max the Dog (1996-1997), Morton the Elephant Bird (1996–1997), The Grinch (assistant in "The Guest"), Aunt Mertle, Babs Balaban, Backup Singer, Civil Servant #3, Daisy's Mom, Disgusted Guest, Down Whozit, Eliza Jane Dorfman, Finnegan, Gertrude, Hopwood, Mayor Stovepipe, Molly Livingood, Mom Tidbiddle, Money Whozit, Mrs. Orissa Buttons, Onlooker #1, Number One, Phone Operator, Pink-Tufted Sneel, Princess Mindy, Queen Regina of Ka-Larry, The Sandwich, Singing Classmate in Play, Squirrel, The Teacher, Tubby Tarbaloot, Verma Leslie Carrara-Rudolph – Little Cat A (1998), Morton the Elephant Bird (1998), Princess Tizz, Mrs. Hall Small, Grandma Hall Small, Grox, Sadie the dog Tim Lagasse – Little Cat P, Fox in Socks (1998), Junior Kangaroo (1998), Annoying Greebles, Ben, Bunky Balaban, The Clam, Eskimo Kid, The Grinch's Right Hand Puppeteer (in "The Song Of the Zubble Wump"), Mr. Moriarty Seagoin Eccles, Old Man Time, Scotty, Sid Spider, The Speaker, Smooch Smooch the pooch, Weasel from Sleezeldoo, Mink, Civil Servant #9 Pam Arciero – Little Cat F,