The crone is a character played by Jessica McKenna who appeared in Body swap.
When hitchhiking, she was refused a lift by Chris W. Smith, and is suspected to have cursed him to repeat the same day millions of times. (Groundhog Daying)
Biography
For 300 years, the crone lived in a cave studying stars and smoke signals with the goal of teaching life lessons to people. Some time in the 21st century, she exited her cave to cast a spell on Michael and Paul, causing them to switch bodies. When they switched back, she hoped for them to regale her with the life lessons they learned, but instead they talked about colours. Frustrated by the anticlimactic coda, she cast a spell to swap bodies with Michael. (Body swap)