The Mary Tyler Moore Show/WMG

Everything About Fiction You Never Wanted to Know.


 Mary Richards is actually Laura Petrie,

who changed her name, after divorcing Rob, taking her son's first name "Richie" as her new fake last name. She did this because she wanted to start a career in the entertainment industry but her ex-husband was a famous television writer, and she was concerned that gossip about their messy divorce might hurt her career if people made the connection between them.

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