SpongeBob

Jeon Tae-yeol

SpongeBob SquarePants/Gary/Mr. SquarePants/Patchy The Pirate/Narrator

Tom Kenny

Patrick

Lee Insung

Patrick Star

Bill Fagerbakke

Squidward

Jeon Kwang-joo

Squidward Tentacles

Rodger Bumpass

Sally

Woo Jeong-shin

Mr. Eugene H. Krabs

Clancy Brown

Mr. Krabs

Choi Han

Sandy Cheeks

Carolyn Lawrence

Plankton

Park Man-yeong

Plankton/Larry the Lobster

Mr. Lawrence

Granny Plankton / Nurse (voice) / Additional Voices (voice)

Laraine Newman

Grandma SquarePants (voice)

Marion Ross

Squilliam Fancyson (voice) / Talking Gary (voice) / Captain (voice)

Dee Bradley Baker

Guest Voice

Adam West

Mrs. Puff (voice)

Mary Jo Catlett

Pearl Krabs

Lori Alan

Guest Voice

Ginnifer Goodwin

Flying Dutchman (voice) / Flying Dutchman / Dutchbomb

Brian Doyle-Murray

Guest Voice

Burt Ward

Karen/Fish #48/Fish #49

Jill Talley

Lady Upturn / Mrs. Sturgeon (voice) / Margaret SquarePants (voice)

Sirena Irwin

Guest Voice

Kristen Wiig

Mermaid Man (voice)

Ernest Borgnine

Plankton's Granddad

Paul Tibbitt

Barnacle Boy (voice)

Tim Conway

Man Ray (voice)

Bob Joles

King Neptune (voice)

John O'Hurley

Nosferatu

Alexander Ward

Tattletale Strangler (voice) / Flats the Flounder (voice) / Marty

Thomas F. Wilson

Sharkface / Jeff Tentacles

Henry Winkler

Mystery (voice) / Gorilla (voice) / Clamu

Frank Welker