Ms. Myrtle is a character in Wander Over Yonder. She is voiced by Piotr Michael.
She first appeared in the episode The Sick Day where every week she is visited by Wander but Sylvia goes in his place due to his sickness. Ms. Myrtle is the eternal turtle, keeper of the cosmos, and weaver of this very galaxy. She enjoys Sylvia's company as Wander arrives forgetting a can of snickerdoodle cookies. She cures Wander and puts him to bed in his hat and orders Sylvia to get rid of the snickerdoodle cookies for she really hates them.