Miss Splish is a tall woman with long blonde hair with bangs at the front, and light purple skin.
She wears a green dress, a sash reading "MISS SPLISH", and has a crown on her head.
In "Parade Day", she is seen on top of the Splish float throwing cans of Splish at people, often missing or hitting their heads. This was until the parade was led into the nearby Hudkins Department Store, where Tilly Green snuck up to her post, and presumably threw her out. She describes this as a "revolution".