A new Apple TV movie is shedding light on a previously unknown aspect of the Peanuts comic strip. Charlie Brown had a pen pal that he began writing to shortly after the strip debuted in 1950. The identity of this pen pal has remained a mystery until now.

What is known is that her name is Mia, she is a young girl from London, and she uses a wheelchair. She is also of South Asian descent. Further details about Mia and her relationship with Charlie Brown can be found through KSAT 12's source.

The revelation of Mia's identity is a new development in the Peanuts storyline, and more information is available for those interested in learning more.