Madam Shenshen Minkos was one of Glinda's friends back when the latter was known was Galinda. She attended Shiz University the same time Elphaba attended.
Wicked[]
She is of the Minkos Clan, a possible noble family of Gillikin similar to Glinda. She was present throughout the Gillikin section of Wicked: The Life and Times of the Wicked Witch of the West, originally acting rude towards Elphaba, but eventually befriending her and joining the charmed circle. She is close friends with Pfannee and Milla.
Out of Oz[]
In Out of Oz, she appears briefly as one of the teachers of Rain at St. Prowd's.
Description[]
As an adult working at St. Prowd’s, Shenshen is described as being a taurine woman who drenched herself in essence of floxflower to disguise the symptoms of a powerful digestive ailment.