Miss Malvin was a Human teacher at the Worley Elementary School in Kenmare, County Kerry, Ireland on Earth in 2151.
Her fourth grade class sent drawings and letters the children had made as well as several questions for the crew of Enterprise NX-01 to answer. Captain Jonathan Archer answered the questions and included pictures of the newly-discovered Archer's Comet. (ENT: "Breaking the Ice")
This character was only mentioned in dialogue.