In one episode, Mr. Krabs sings a mornful ballad that sounds remarkably like Tom Waits or someone doing a great imitation. I’ve heard TW is a fan of the NickToon, so it wouldn’t surprise me too much. Does anyone know if he provided the voice? I did a general Google search for “Tom Waits” and “Mr. Krabs” but came up empty.
There are lots of references that indicate Tom is a big fan of Spongebob, so maybe it was him.