Mari Berché is a student at Clorencia University. The characters run into her while conducting research at the library in The Gentleman Caller scenario.

Mari Berché is an Anthropology student, who needs a bit of help. Mari is a stunningly beautiful redhead, charming, brilliant, and innocent. She wears tall boots, a dark skirt, and a blouse that is both modest and very tight. Mari is researching the technology and culture of the Ancient Tsuankhotl Empire for Professor Harrington's class. Unfortunately one of the main books she needs to check out is, for some unknown reason, in the Restricted section of the library – available only to professors and government officials.