character - Plankton (voice)

character - Plankton / Teen Plankton / Rube / Snorkler (voice)

character - Fred / Larry / Plankton / Video Announcer / Plankton Lincoln / Snail Walker / Bottomite Crowd (voice)

character - Plankton / Various (voice)

character - Plankton / Larry the Lobster / Anchovy #1 / Sea Bunnies / Sea Urchins (voice)

character - Xanadome Announcer

character - Plankton / PlankBot / Rube / Rubedor / Robo-Larry

character - Plankton (voice)

character - Plankton / Teensy Tom / Crowd (voice)

character - Dr. Plankenstein / Fred / Crowd / Supporters (voice)

character - Fred / Customers (voice)

character - Rube / Larry / Tourists (voice)

character - Dr. Plankenstein / Larry / Fred / Various (voice)

character - Rube / Mechanic 2 / Marvin / Worms (voice)

character - Dr. Plankenstein / Canned Laughter / Various (voice)

character - Fred / Cream Puff Guy (voice)

character - Rube / Hungry Feeling / Doctor / Pedestrians (voice)

character - Dr. Plankenstein / Announcer / Fred / Audience / Tattoos (voice)

character - Fish Announcer (voice)

character - Sheldon J. Plankton (voice)

character - Plankton (voice)

character - Self (As Doug Lawrence)

character - Filburt / Maitre D' / Martian 1 / Doug / Hopping Hessian / Doodleberg / Lizard (voice)

character - Plankton / Buff Ghost / Ghost (voice)

character - Plankton / Buff Ghost / Ghost (voice)

character - Plankton / Plankton Robot / News Anchor Fish / Mob Member (voice)

character - Plankton

character - Additional Voices (voice)

character - Plankton (voice)

character - Mr. Lawrence

character - Cartoon Narrator

character - Sheldon J. Plankton

character - Plankton (voice)

character - Plankton, Larry the Lobster, Citizen, Fish #45 (voice)

character - Plankton / Larry the Lobster / Ventriloquist (voice)

character - Self

character - Joey

character - Plankton (voice)

character - Plankton / Pocket Dogs

character - Alien #2 (voice)

character - Dave / Edward (voice)

character - Edward / Ping Pong / Dave (voice)

character - Edward (voice)

character - Edward / Dave / Ping Pong / Nurse Leslie (voice)

character - Plankton / Fish #7 / Attendant #2 (voice)

character - Sheldon J. Plankton (voice) (archive sound)

character - Sheldon J. Plankton

character - (voice)

character - Plankton / Larry the Lobster (voice)

character - Himself

character - Filburt Turtle / Fruitcake Man (voice)

character - Filburt Turtle (voice)