Madame Sinclaire was a character that knew the protagonist in Exoptable Money. She mostly talked to him and gave tips on how to earn more money, such as skinning his cat for the fur to sell it.

She also "Used to make money for" the protagonist, but doesn't know him very well, stating "All I know about you is your address".

Her family all died do to the virus, antidote or faulty organs.