SpongeBob's Atlantis SquarePantis is a 2007 made-for-television musical comedy special directed by Andrew Overtoom. It stars Tom Kenny, Bill Fagerbakke, Rodger Bumpass, Clancy Brown, Carolyn Lawrence, and Mr. Lawrence. SpongeBob's Atlantis SquarePantis originally aired on Nickelodeon in the United States on November 12, 2007, following a 12-hour-marathon of SpongeBob SquarePants episodes. The series follows the adventures of the title character in the underwater city of Bikini Bottom. In the film, SpongeBob (voiced by Kenny) and Patrick (voiced by Fagerbakke) discover a half of an ancient medallion that helps them & their friends get to the lost city of Atlantis.