I love watching S.Squarepants with my son. A few years back I had come to discover that one of the characters that periodically appears on this show is voiced by Tim Conway from Carol Burnett show. He voices Barnacle Boy.

Here is part of an interview he gave regarding his work on Spongebob:

QUESTION: How did you like being the voice of Barnacle Boy?

TC: You know you go into a recording studio and do these commercials and voiceovers and forget about them. Actually, it was my granddaughter who discovered that I was on "SpongeBob Square Pants." She said, "Grandpa, that's you."

CP: Is SpongeBob really gay?

TC: Talk about politically incorrect! [laughter] Now that's something we all really need to know. [laughter]

CP: Well, I figured if anyone would know it would be Barnacle Boy. [More laughter]