Douglas Lawrence Osowski (born January 1, 1969), known professionally as Mr. Lawrence, is an American voice actor, screenwriter, animator and comedian. He is best known for his work as a writer and voice actor for the Nicktoons Rocko's Modern Life/Rocko's Modern Life: Static Cling and SpongeBob SquarePants. On SpongeBob, he has provided the voice of Sheldon J. Plankton, Larry the Lobster, Fred, and various recurring characters since the show's debut in 1999.

Early life and career Lawrence grew up in East Brunswick, New Jersey. In high school, he would appear in sketch comedy live shows during the summer. He attended The Kubert School for two years, before dropping out to focus on his stand-up.

Lawrence started his animation career at Spümcø, where he was one of the few new hires alongside Peter Avanzino and Ron Hughart. He served as a layout assistant on the second season of The Ren & Stimpy Show and endured harsh working conditions under John Kricfalusi. He followed future showrunner Bob Camp and others to Games Animation, where he completed the rest of his work and switched to Joe Murray's unit. He became a major crew member on Rocko's Modern Life, voicing Filburt while directing and writing multiple episodes, a contrast to his minor role at the perpetually suffering Ren & Stimpy unit.

After Rocko, he worked as a writer (and, from season 10–18, story editor) on the animated TV series SpongeBob SquarePants. He also has long-running character roles on the show, providing the voice of Sheldon Plankton and various recurring characters, such as Fred the fish, Potty the Parrot (replacing Paul Tibbitt from season 10 onwards), the Realistic Fish-Head, and Larry the Lobster. He has also voiced Plankton in the SpongeBob Movie in 2004, along with the other installments in the SpongeBob film series and spinoffs. Mr. Lawrence also co-wrote the story and screenplay for the Plankton: The Movie, which was released on Netflix in March 2025.

He was the voice of Edward T. Platypus, Nurse Leslie, Dave, and Ping-Pong on Camp Lazlo. Lawrence also performed the voice of Manant in The Aquabats! Super Show!. Lawrence also worked as a producer on the television series Johnny Talk and as a writer on Rocko's Modern Life, The Twisted Whiskers Show and Mighty Magiswords.

As a comedian, Lawrence performed in New Jersey and Los Angeles, collaborating with comedian Jeremy Kramer and Boston comedy writer Martin Olson. Jeff "Swampy" Marsh, a storyboard writer for Rocko's Modern Life and co-creator of Phineas and Ferb, described Lawrence as bearing a "unique sense of humor", and that one "would really have to know Doug to understand (or not understand)" his style. Marsh says that the rationale for Lawrence's humor techniques and decisions "remain a mystery to us forever.""Dan Abrams' interview with Jeff "Swampy" Marsh," The Rocko's Modern Life FAQ

Personal life Lawrence is married and lives in Burbank, California.

Filmography

Films and television shows Year Title Role Notes1992–93The Ren & Stimpy Show12 episodes; layout assistant 1993–96 Rocko's Modern Life Filburt, Additional Voices 42 episodes; also writer, storyboard artist, and director 1995–96 The Twisted Tales of Felix the Cat Baby, Milk Vendor, Additional Voices 2 episodes; also character designer1997 Lost on Earth creator 1998 Toonsylvania 6 episodes; storyboard artist 1999 CatDog story wrote episode: "It's a Wonderful Half Life/Shepherd Dog" 1999–present SpongeBob SquarePants Plankton, Larry the Lobster, Realistic Fish Head, Fred, Potty the Parrot (since season 10), Tom, Additional Voices writer (1999–2002; 2009–)story editor (2016–) 2000 Hairballs Ray Short film 2004 The SpongeBob SquarePants Movie Plankton, Fish #7, Attendant #2, Lloyd (voice) 2005–08 Camp Lazlo Edward, Dave, Ping Pong, Nurse Leslie, Additional voices 61 episodes 2007 The Grim Adventures of Billy & Mandy Alien #2 (voice) Episode: "Billy and Mandy Moon the Moon" 2009 The Haunted World of El Superbeasto additional director, additional screenplay material, additional story, storyboard artist, character layout artist, character designer, and prop designer 2010 The Cartoonstitute Joseph "Joey" Elliot Kangaroo (voice) Episode: "Joey to the World" 2012–14 The Aquabats! Super Show! Narrator, ManAnt (voice) 21 episodes2015 The SpongeBob Movie: Sponge Out of Water Plankton, Plankton Robot, News Anchor Fish, Mob Member (voice) Uncle Grandpa Philip (voice) Episode: "Older" New Looney Tunes story wrote episode: "Scarecrow" 2015–19 Mighty Magiswords Ralphio, Jest-O the Best-O, Additional Voices 27 episodes; also story writer (2016) 2019 Rocko's Modern Life: Static Cling Filburt, Maitre D', Martian 1, Doug, Hopping Hessian, Doodleberg, Lizard (voice) TV special; also writer 2020 The SpongeBob Movie: Sponge on the Run Plankton (voice) 2020–2023 Deer Squad Ian (voice) English dub 2021–2024Kamp Koral: SpongeBob's Under Years Plankton, Larry the Lobster, Additional Voices 39 episodes; also co-developer, writer, theme song composer and story editor 2021–presentThe Patrick Star Show Plankton, Fred, Larry the Lobster, Additional Voices Co-developer, writer and story editor 2023Blaze and the Monster Machines The Baby Robot (Voice) Episode: "The Baby Robot from Outer Space"2024Saving Bikini Bottom: The Sandy Cheeks Movie Plankton, Fred, Larry the Lobster, Additional Voices 2025Plankton: The Movie Plankton, Rube Goldfish (voice) Also Story and Screenwriter The SpongeBob Movie: Search for SquarePants Plankton (voice) Cameo

Video games Year Title Role Note1993 Awesome Possum... Kicks Dr. Machino's Butt Dr. Machino 1996 Nickelodeon 3D Movie Maker Filburt Turtle 2000 Nicktoons Racing Plankton Archival recordings A green check mark indicates that a role has been confirmed using a screenshot (or collage of screenshots) of a title's list of voice actors and their respective characters found in its credits or other reliable sources of information. 2001 SpongeBob SquarePants: SuperSponge SpongeBob SquarePants: Operation Krabby Patty 2002 SpongeBob SquarePants: Employee of the Month Plankton, Larry the Lobster SpongeBob SquarePants: Revenge of the Flying Dutchman 2003 Nickelodeon Toon Twister 3D Plankton SpongeBob SquarePants: Battle for Bikini Bottom Plankton, Larry the Lobster, Prawn, Realistic Fish Head 2004 The SpongeBob SquarePants Movie: The Video Game Plankton SpongeBob SquarePants: Typing Plankton, Realistic Fish Head 2005 Nicktoons Unite! Plankton SpongeBob SquarePants: Lights, Camera, Pants! Plankton, Larry the Lobster, Realistic Fish Head 2006 SpongeBob SquarePants: Creature from the Krusty Krab Plankton Spongebob SquarePants: Nighty Nightmare 2007 SpongeBob's Atlantis SquarePantis 2008 SpongeBob SquarePants Featuring Nicktoons: Globs of Doom 2009 SpongeBob's Truth or Square Borderlands Additional Voices 2011 Nicktoons MLB Larry the Lobster 2013 SpongeBob SquarePants: Plankton's Robotic Revenge Plankton 2015 SpongeBob HeroPants Plankton/Plank-Ton 2020 SpongeBob SquarePants: Battle for Bikini Bottom – Rehydrated Plankton, Larry the Lobster, Prawn, Realistic Fish Head Archival recordings 2023 SpongeBob SquarePants: The Cosmic Shake Plankton, Larry the Lobster, Realistic Fish Head, Fred, Prawn, Citizens Nickelodeon All-Star Brawl 2 Plankton, Chum Slave 2024 SpongeBob SquarePants: The Patrick Star Game Plankton, Fred, Realistic Fish Head 2025 Nicktoons & The Dice of Destiny Plankton SpongeBob SquarePants: Titans of the Tide Plankton, Larry the Lobster, Fred, Tom, Fish Announcer

Theme parks Year Title Role Notes2005SpongeBob 4DPlankton

The Food Album (1993) – album art

Awards and nominations

Year Award Category Result 1995 CableACE Award Best Animated Programming Special or Series 2012 Primetime Emmy Award Outstanding Short-Format Animated Program

References

External links