Mrs. Suzu

Hagatha and Nagatha are characters of the day who appeared in Illusion Confusion!. Hagatha wears a red headband while Nagatha wears a white headband, and they also have slightly different eyebrows.

Hagatha lives in the middle of a forest that is believed to be haunted. To help people traveling through the forest, she rents Hoothoot to help guide them past the Gastly, Haunter and Gengar, using Foresight. Nagatha lives at the edge of that same forest. She is responsible for collecting the Hoothoot that her sister Hagatha rents to traveling Trainers trying to get through the forest.

Ash and his friends were lost in the forest and were being chased by illusions, although they were briefly saved by Gary and his rented Hoothoot. Later, they ran into Hagatha, who Brock believed must be an illusion because nothing so ugly could be real. Hagatha screamed at Brock and Ash and terrified them, before she rented them a restless Hoothoot who had never guided a person through the forest before.

Once through the forest, Ash and his friends met up with Nagatha. Nagatha told them that she is much better looking than her sister, despite the fact they are identical. The only way to tell the two sisters apart is by their headbands: Nagatha's is white, while Hagatha's is red.

(Source: Bulbapedia)