SpongeBob SquarePants

• Role Type: Principal Lead (Tenor / Belter)

• Description: An eternally optimistic, energetic, and big-hearted fry cook at the Krabby Patty who embarks on a dangerous mountain climb to stop a volcanic eruption and prove to the town that he is far more than "just a simple sponge."

Patrick Star

• Role Type: Principal Lead (Tenor / Baritone)

• Description: SpongeBob’s goofy, dim-witted, yet deeply loyal best friend whose simple observations accidentally lead a group of lost sea creatures to worship him as an all-knowing spiritual guru.

Sandy Cheeks

• Role Type: Principal Lead (Mezzo-Soprano / Belter)

• Description: A brilliant, karate-chopping Texan squirrel who must rely on her scientific ingenuity to invent a volcano-stopping device, all while facing xenophobic blame from the panicked citizens of Bikini Bottom.

Squidward Q. Tentacles

• Role Type: Principal Lead (Baritone / Tenor)

• Description: SpongeBob’s cynical, pompous neighbor who desperately wants to escape his mundane job at the Krabby Patty and achieve his lifelong dream of performing a showstopping Broadway tap routine.

Sheldon J. Plankton

• Role Type: Principal Lead (Tenor / Baritone / Rap)

• Description: The devious, micro-sized owner of the Chum Bucket who sees the impending volcanic apocalypse as the ultimate opportunity to hypnotize the entire town into finally eating his terrible food.

Karen the Computer

• Role Type: Principal Lead (Soprano / Mezzo-Soprano)

• Description: Plankton’s sarcastic, highly intelligent computer wife who constructs the actual mechanical schemes for world domination while growing increasingly tired of her husband taking her for granted.

Eugene H. Krabs

• Role Type: Principal Lead (Baritone)

• Description: The greedy, money-obsessed owner of the Krabby Patty and devoted father to Pearl, whose immediate response to world-ending disaster is to mark up menu prices and profit off the chaos.

Pearl Krabs

• Role Type: Supporting Lead (Mezzo-Soprano / Belt)

• Description: Mr. Krabs’ energetic teenage whale daughter who dreams of singing with her favorite band, the Electric Skates, and longs for a father who cares more about her than his wallet.

Mayor of Bikini Bottom

• Role Type: Supporting (Speaking / Flexible)

• Description: A self-serving, dramatic politician who is far more concerned with controlling media narratives and staging reassuring press conferences than actually managing the town's crisis.

Perch Perkins

• Role Type: Supporting (Flexible Vocal)

• Description: Bikini Bottom’s fast-talking lead news anchor who broadcasts live updates on the volcano countdown with equal parts professional polish and creeping personal panic.

Larry the Lobster

• Role Type: Supporting (Speaking / Flexible)

• Description: The local beach-loving gym fanatic who attempts to keep public morale high through extreme workout routines, physical fitness, and relentless, unhelpful positivity.

Mrs. Puff

• Role Type: Supporting (Speaking / Flexible)

• Description: SpongeBob’s perpetually anxious boating school instructor who spends the disaster trying to maintain composure while internally unraveling from years of dealing with SpongeBob's driving.

Old Man Jenkins

• Role Type: Featured Character (Flexible)

• Description: A cranky, confused elderly fish who is constantly caught up in the center of town mob panics, pointing fingers, and contributing to the general chaos.

The Electric Skates

• Role Type: Featured Ensemble (Rock Vocalists)

• Description: A trio of arrogant, high-maintenance punk-rock celebrities who agree to play a charitable disaster benefit concert, only to throw a diva fit over backstage amenities and abandon the town.

French Narrator

• Role Type: Cameo / Voiceover

• Description: A suave, theatrical, Jacques Cousteau-style announcer who introduces key scenes with dramatic flair and periodically reminds the audience how little time Bikini Bottom has left.

Sea Anemones

• Role Type: Specialty Tap Dancers

• Description: A flashy group of backup dancers who appear in Squidward’s glamorous, fantasy-sequence tap number to elevate his dream of stardom.

Sardine Devotees

• Role Type: Featured Chorus

• Description: A group of gullible, disillusioned sea creatures who mistake Patrick's simple, lazy statements for profound spiritual wisdom and form an overly enthusiastic cult around him.

Town Fish & Citizens of Bikini Bottom

• Role Type: Full Ensemble

• Description: A vibrant, highly expressive collection of local residents—including angry protesters, frantic news crews, cowboy squirrels, and sea creatures—who drive the big group musical numbers and group panic scenes.