Who played the Log Lady in the TV series Twin Peaks?

Catherine Coulson played the Log Lady in Twin Peaks.

The character is known for carrying a log and speaking as though it provides observations about the people and events around her. Her formal name is Margaret Lanterman, but viewers and characters commonly identify her by the nickname Log Lady.

Coulson had a long creative connection with David Lynch before Twin Peaks. Lynch and Coulson developed the Log Lady concept during an earlier period, and Coulson’s distinctive presence helped turn a potentially comic side character into one of the show’s memorable symbols.

Coulson returned as Margaret Lanterman for Twin Peaks: The Return. The revival also acknowledged the character’s illness, giving the Log Lady’s final appearances an elegiac quality. Coulson died in 2015, before the revival aired.