Host
David Dobrik
SpongeBob SquarePants/Gary/Mr. SquarePants/Patchy The Pirate/Narrator
Tom Kenny
Squidward Tentacles
Rodger Bumpass
Patrick Star
Bill Fagerbakke
Mr. Eugene H. Krabs
Clancy Brown
Sandy Cheeks
Carolyn Lawrence
Doug Lawrence
Plankton / Larry the Lobster (voice)
Mr. Lawrence
Mrs. Puff (III) / Mrs. Puff (II) / Mrs. Puff (I)
Mary Jo Catlett
Mermaid Man (voice)
Ernest Borgnine
Thomas F. Wilson
Barnacle Boy (voice)
Tim Conway
Squilliam Fancyson (voice)
Dee Bradley Baker
Lori Alan
Man Ray (voice)
Bob Joles
Flying Dutchman (voice) / Flying Dutchman / Dutchbomb
Brian Doyle-Murray
Nosferatu
Alexander Ward
Granny Plankton (voice) / Granny Plankton / Nurse (voice)
Laraine Newman
Karen
Jill Talley
Lady Fish
Sirena Irwin
Man Ray (voice)
John Rhys-Davies
Santa Claus (voice)
Lewis Black
King Neptune (voice)
John O'Hurley
Mark Fite
Master Udon
Pat Morita
Musical guest
Dimebag Darrell
Kid
Camryn Walling