From Webkinz Insider Wiki
Puddles is a Golden Retriever who works at the KinzPost Office.
He is described by Ganz as follows: " Puddles works at the KinzPost office. He’s big into following rules and doesn’t like it when people forget to address their envelopes. He likes sweater vests and wearing his glasses on his head (so he doesn’t lose them – he only needs them for reading)."
Puddles can be found in the following books: