In which year, did this earliest guest star in 1999 for SpongeBob SquarePants stop providing the voice?
SpongeBob SquarePants (season 1) The first season of the American animated television sitcom "SpongeBob SquarePants", created by former marine biologist and animator Stephen Hillenburg, aired from May 1, 1999 to April 8, 2000, and consists of 20 episodes. The series chronicles the exploits and adventures of the title character and his various friends in the fictional underwater city of Bikini Bottom. The show features the voices of Tom Kenny, Bill Fagerbakke, Rodger Bumpass, Clancy Brown, Mr. Lawrence, Jill Talley, Carolyn Lawrence, Mary Jo Catlett, and Lori Alan. Among the first guest stars to appear on the show were Ernest Borgnine and Tim Conway voicing the superhero characters of Mermaid Man and Barnacle Boy, respectively.
SpongeBob's Atlantis SquarePantis 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. "Atlantis SquarePantis" originally aired on Nickelodeon in the United States on November 12, 2007, following a 12-hour-marathon of "SpongeBob SquarePants" episodes. 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.