Bayin

Bayin is a Human member of the Psionic Academy. Her main distinguishing feature is that she was born without a right arm, and with a left arm that only goes as far as the elbow. The cause of this birth defect is unknown.
She is presumably fairly senior in the Academy, as she claims to take orders only from the director. She must also be fairly powerful, as she is stated to be a higher level than the PCs.