Oswald is the titular main protagonist of the Nick Jr show of the same name.
He is voiced by Fred Savage, who also voiced Rusty Reindeer.
Oswald is a large blue octopus (four arms, four legs) who lives in an apartment complex with Henry the Penguin and several other animals including a turtle named Buster. A very gentle, polite and big-hearted octopus, Oswald is always willing to go out of his way to help his friends. His favorite hobby is playing the piano and singing (usually to comfort himself or to encourage a friend). He sometimes says "Oh, my gosh!". Oswald always wears a life preserver when he is around water and loves Swizzleberry Swirl ice cream.
Oswald is a circular shape and is colored mostly blue. He almost always sports a black hat. His eyes and mouth are colored black as well. Oswald has four arms and four legs.
Oswald appears in every episode of Oswald. His first appearance was in "Rollerskating." His final appearance was in "Snow to Go."