Surprising Secrets from the Set of Little House on the Prairie

According to Alison Arngrim, Melissa Sue Anderson, who played Mary Ingalls, was noticeably reserved on set. While many cast members formed close friendships and spent time together between scenes, Anderson tended to stay apart and rarely joined in on the fun.

Arngrim described her as polite but distant, saying she made little effort to connect with her fellow actors. Her quiet, serious nature stood out in contrast to the rest of the lively cast — earning her a reputation as the most private member of the group.