Mr. Lawrence

Plankton / Teen Plankton / Rube / Snorkler (voice)

Jill Talley

Karen / All the Karens / Alarm Voice / Stiletto Woman / Old Lady Cane (voice)

Tom Kenny

SpongeBob / Random Student / Gary / French Narrator (voice)

Bill Fagerbakke

Patrick / Troop (voice)

Rodger Bumpass

Squidward / Fish Troop / Goofy Goober Employee (voice)

Carolyn Lawrence

Sandy (voice)

Clancy Brown

Mr. Krabs / Pa Plankton (voice)

Mary Jo Catlett

Mrs. Puff (voice)

Lori Alan

Pearl / A Woman in Crowd (voice)

Dee Bradley Baker

Perch Perkins / Roommate / Guy in the Back of the Crowd / Muscle Fish (voice)

Kate Higgins

Ma Plankton (voice)

Genesis Clarre

Bucket Girl

Sale Taylor

Ice Cream Guy

Natalie Kailey

Sunblock Gal

Austin Valli

Fitness Bro

Abbi Ella Gonzales

Sand Castle Girl

Toby Larsen

Sand Castle Boy

Dave Needham

(Handsome) Plankton (voice)

Lisa Linder

Fish Mom #1 / Fish Mom #2 / Swan / Fish (voice)

Frank Welker

Lion (voice) (uncredited)