Douglas Lawrence Osowski, better known as Mr. Lawrence and sometimes credited as Doug Lawrence, is an American voice actor, writer, director, and storyboard artist, best known for his longest-running role as the voice of Plankton, Larry the Lobster and various other characters in the longest-running Nickelodeon animated television series SpongeBob SquarePants. He is also known as a writer in various cartoons such as Rocko's Modern Life, The Twisted Tales of Felix the Cat, The Haunted World of El Superbeasto, and various other shows and other addtional voice work.

His only known Disney role so far is that he provided some addtional character voices in Disney's Wander Over Yonder.