Mad Scientist Tasha is an inventor who works with Assistant Austin in her laboratory. She creates potions and loves to laugh maniacally. Despite this, she has a sweet personality and cares deeply about her friends.
Mad Scientist Tasha is primarily yellow. She wears a white lab coat, a red polka-dotted bowtie, a green shirt, and black gloves. She also sports brown glasses and a gray wig.
Tasha has played Mad Scientist Tasha in one episode of The Backyardigans: "Scared of You" from season two.