Mr. Lawrence

Douglas Lawrence Osowski (born January 1, 1969), known professionally as Mr. Lawrence, is an American voice actor, screenwriter, animator, and comedian. He grew up in East Brunswick, New Jersey, appeared in sketch comedy live shows in high school, and attended The Kubert School for two years before dropping out to focus on his stand-up. He is best known for his work as a writer and voice actor on the Nicktoons Rocko's Modern Life and SpongeBob SquarePants, where he has provided the voice of Sheldon J. Plankton, Larry the Lobster, and various recurring characters since the show's debut in 1999. He began his animation career at Spuemco on The Ren & Stimpy Show, then became a major crew member on Rocko's Modern Life, voicing Filburt while directing and writing multiple episodes. As a comedian, Lawrence performed in New Jersey and Los Angeles, collaborating with comedian Jeremy Kramer and writer Martin Olson. He also wrote the story and screenplay for Plankton: The Movie, released on Netflix in March 2025.