Mary Ingalls
Played by: Melissa Sue Anderson
Appearances: ???????
Mary is the eldest daughter of Caroline and Charles Ingalls.

Matthew Dobbs
Played by: Tom Rosqui
Appearances: The Faith Healer
When Matthew's son Timothy had a problem with his appendix, he believed that Danforth would be able to cure it. The faith healer's "cure" was temporary, and his boy ended up dying.

Ms. Elliott
Played by: Ellen Regan
Appearances: The Sound Of Children
Ms. Elliott was a substitute teacher who briefly replaced Alice Garvey. Albert liked her, but later found out that she was engaged.

Ms. Trimble
Played by: Lucille Benson
Appearances: Sweet Sixteen
Laura Ingalls acted as a substitute teacher for Ms. Trimble when she injured herself. Ms. Trimble also gave Laura a place to stay.

Mrs. Foster
Played by: Ruth Foster
Appearances: ??????
Mrs. Foster is in charge of giving mail to the people of Walnut Grove.

Molly Reardon
Played by: Suzanne Rogers
Appearances: Second Spring
Nels Oleson had a very brief affair with Molly when he started a mobile emporium.

Monsieur Francois
Played by: Leon Belasco
Appearances: The Rivals
Monsieur Francois was the waiter at the French restaurant that was visited by Jonathan Garvey and Charles Ingalls. When he brought the duo their meals, they did not like them, so Charles cancelled their orders.