Katrina Eloise Murphy

Katrina Eloise "Murph" Murphy: Is Ms. Frizzle's lovely first cousin who owns and operates Murph's Recycling Plant. She teaches the class the value of recycling in the episode "The Magic School Bus Holiday Special". Just like the Friz, she has red hair. She loves recycling and hates seeing things being wasted. She is voiced by Dolly Parton. Dottie is her cousin once removed. She teaches Wanda and Arnold the importance of recycling after Arnold recycles Wanda's toy soldier and Wanda develops a hatred towards recycling.