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.
Long John Baldry John William "Long John" Baldry (12 January 1941 – 21 July 2005) was an English blues singer and a voice actor. He sang with many British musicians, with Rod Stewart and Elton John appearing in bands led by Baldry in the 1960s. He enjoyed pop success in the UK where "Let the Heartaches Begin" reached No. 1 in 1967 and in Australia where his duet with Kathi McDonald "You've Lost That Lovin' Feelin'" reached number two in 1980. Baldry lived in Canada from the late 1970s until his death; there he continued to make records and do voiceover work. Two of his best known roles in voice acting were as Dr. Robotnik in "Adventures of Sonic the Hedgehog", and as KOMPLEX in "Bucky O'Hare and the Toad Wars.