Well if you did, you'll know exactly who this is!
Its the seal, and his name is Robby apparently. In German his name means 'seal'. He first appeared in 'Pingu Goes Fishing' and he meets Pingu after continuously stealing the fish he catches.
Another animated seal I found in my searches was Kotick, The White Seal. The 24 minute animated film was adapted from Rudyard Kipling's story of the same name.
Kotick, is a baby seal born along with thousands of other seals on the beach of Novastosnah on a distant northern island in the Bering Sea. He is seen as unusual as he is white, unlike the other seals.
And here is a link to a real news story about a white elephant seal being spotted on a sub-Antarctic beach in 2009.
http://news.bbc.co.uk/earth/hi/earth_news/newsid_8059000/8059966.stm