Douglas Lawrence Osowski, known professionally as Mr. Lawrence, is an American voice actor, animator, and writer. He is best known for his work as a writer and voice actor for the Nicktoons Rocko's Modern Life and SpongeBob SquarePants. On SpongeBob, he has provided the voice of Plankton, Larry The Lobster, Fred and various recurring characters since 1999.

Rocko's Modern Life is an American animated television series created by Joe Murray for Nickelodeon. The series centers on the surreal life of an anthropomorphic Australian immigrant wallaby named Rocko and his friends: the eccentric steer Heffer Wolfe, the neurotic turtle Filburt, and Rocko's faithful dog Spunky. It is set in the fictional town of O-Town. Throughout its run to present day, this show was infamously laden for its adult humor, including double entendre, innuendo, and satirical social commentary, similar to The Ren & Stimpy Show. The series has gained a cult following.