In which year, did this earliest guest star in 1999 for SpongeBob SquarePants stop providing the voice?
Mermaid Man and Barnacle Boy Mermaid Man and Barnacle Boy are fictional superheroes in the Nickelodeon animated television series "SpongeBob SquarePants". Mermaid Man was voiced by Ernest Borgnine from 1999 to his death in 2012, and Barnacle Boy is voiced by Tim Conway. Mermaid Man and Barnacle Boy were created and designed by Stephen Hillenburg. The characters debuted on August 21, 1999 in the series' episode "Mermaid Man and Barnacle Boy".
Handy Manny Handy Manny is a CGI animated children's television program. It first aired on September 16, 2006 as originally part of Disney Channel's Playhouse Disney daily block intended for preschoolers. The show's final episode aired on February 14, 2013 and reruns aired until 2016. On February 14, 2011, it was moved to the Disney Junior block, serving as Playhouse Disney's replacement. The show's title character is voiced by Wilmer Valderrama. Children aged 4–9 were usually the show's audience.