is also Horton the Elephant's adoptive younger brother and Morton the Elephant-Bird's adoptive uncle as seen in "The Birthday Moose". Thidwick was later dropped from the show at the end of Season 1. The Wickersham Brothers (performed and voiced by John Kennedy, Anthony Asbury, and Bruce Lanoil) is a family of apes who come from Horton Hears a Who! and are often employed by Jane Kangaroo and/or Yertle the Turtle. Sarah Hall Small (performed and voiced by Stephanie D'Abruzzo) is a girl who is a resident of Seussville. She debuted during the second season. Sam-I-Am (performed and voiced by John Kennedy) – he appeared in Green Eggs and Ham. He appeared in Season 2 where he would often lend a hand to the Cat in the Hat. Sue Snue (performed and voiced by Stephanie D'Abruzzo) is a girl who is a resident of Seussville and appeared in season 1. Minor Mayor Stovepipe (performed and voiced by Kathryn Mullen) is the mayor of Seussville who appeared in season 1. Matthew Katroom (performed and voiced by Anthony Asbury) is a boy who is a resident of Seussville and is good friends with Sarah Hall Small. Pam-I-Am (performed and voiced by Stephanie D'Abruzzo) is a female counterpart of Sam-I-Am and expert repair girl. The Cat in the Hat often uses the Pam Phone to call on her. Her motto is "Pam-I-Am, fix it I can!" The Birthday Bird (performed and voiced by John Kennedy) appeared in Happy Birthday to You! He lives in Katroo and he likes to celebrate birthdays. Sally Spingel-Spungel-Sporn (performed by Camille Bonora in "The Muckster" and Stephanie D'Abruzzo in "Max the Hero" and "Horton Has a Hit") is a news reporter who came from The Cat in the Hat Song Book. King Derwin (performed and voiced by Anthony Asbury) is the King of the Kingdom of Didd who came from The 500 Hats of Bartholomew Cubbins. Princess Tizz (performed and voiced by Leslie Carrara-Rudolph) is the daughter of King Derwin. Norval the Fish (performed and voiced by John Kennedy) – he appeared from You're Only Old Once! Norval would appear in different roles in the show. Around Season 2, Norval would work as an advisor to the King Derwin of the Kingdom of Didd. Milo (performed and voiced by John Kennedy) is a boy who resides in the Kingdom of Didd and serves as King Derwin's page. The Yapper-Nap