What is the name of aspiring hedgehog actor in Toy Story 3?

There isn't an aspiring hedgehog actor in Toy Story 3. There are many toys, but none of them are hedgehogs. There is a character named Mr. Pricklepants who is a pink, spiky, plush toy that looks like a hedgehog, but he is not identified as one.

It's possible you're thinking of a different movie or show!