From Muppet Wiki

Goldilocks was Baby Bear's nemesis on Sesame Street from 1991 to 1998. The character is a takeoff on the classic fairy tale "Goldilocks and the Three Bears".

In her earlier appearances, Goldilocks often irritated Baby Bear by doing everything he did. By the mid-90s, she instead became Baby Bear's friend. Unfortunately for him, she was very eager to help him in any way, even when he didn't need it.

In Episode 4066, she came back to Sesame Street after visiting her Grandmother Graylocks in Florida. She was slightly redesigned for her later appearances; instead of a straw hat she sported a blue bow in her hair, and her bright yellow curls became gold-colored.

References

• Baby Piggy played Goldilocks in a 1985 storybook, Goldilocks: Baby Piggy's Dream.