Niki Yang is a storyboard artist who provides the voices of Lady Rainicorn and BMO in Adventure Time. She previously worked as a storyboard artist on shows such as Fanboy and Chum Chum and Family Guy. Along with this, she wrote and directed two shorts for Random! Cartoons, entitled "Two Witch Sisters" and "Victor the Delivery Dog." She voiced Candy in the Disney Channel show Gravity Falls.
Niki left her position as storyboard artist at Frederator after season one of Adventure Time, but she continues to provide the voices of Lady Rainicorn and BMO. She also played the voice one of two nymphs in the season two episodes "Power Animal" and Lollipop Girl in "Davey."