Katherine MacGregor Guest Stars on Emergency! | You know her best as Harriet Oleson. But before her iconic role on Little House, Katherine MacGregor guest starred in this epiosode of Emergency! Don't...
![CJ Frederick 🇺🇦 on Twitter: "Just learned it's Katherine MacGregor. Sorry about that, Scottie!" / Twitter CJ Frederick 🇺🇦 on Twitter: "Just learned it's Katherine MacGregor. Sorry about that, Scottie!" / Twitter](https://pbs.twimg.com/media/Dr-ZGKBXcAE-9Lf.jpg)
CJ Frederick 🇺🇦 on Twitter: "Just learned it's Katherine MacGregor. Sorry about that, Scottie!" / Twitter
![Little House on the Prairie': Katherine MacGregor Had a Habit That Drove Michael Landon 'Nearly Insane' Little House on the Prairie': Katherine MacGregor Had a Habit That Drove Michael Landon 'Nearly Insane'](https://i.ytimg.com/vi/35Qp3qMUMwM/maxresdefault.jpg)