Squidabeth is an aquamarine vampire squid who has blue hair done up in a bouffant with pencils holding it in place, and wears a white shirt with golden sleeves, and a light blue skirt that resembles the webbing of a vampire squid. She has tentacles, much like other octopuses, but is able to float. She looks similar to Squilvia.
Soon after, she announces that the night train has arrived. SpongeBob, who has taken Barry's place, cooks some Krabby Patties for the hungry customers. When the customers dislike the food, Squidabeth chastises SpongeBob for cooking 'daytime' food, and demands that he cook actual food. However, she changes her tune when she sees that he has made some Night Patties, and goes on to give the customers Night Patties.
Later, Squidabeth is filing her tentacles when The Fisherman comes into the restaurant. She opens the cash register for him, and later defends him when SpongeBob stops his theft. She soon announces the end of the night shift, and tells SpongeBob to visit soon as she leaves with Barry, Nosferatu and the Fisherman.
Squidabeth and everyone else in the night shift is soon revealed to be an illusion created by The Tidal Zone, and she is seen flying around the Tidal Zone as the French Narrator talks about SpongeBob's adventure in the night shift.
Her name is a parody of the common name "Elizabeth."
She is based on stereotypical American diner waitresses with southern accents.