Lieutenant Rieser

Lieutenant Rieser is a doctor in the US Army.

History
While waiting to hear which of them the colonel would select as first, Rieser and John Matthews both believed it would be Megan. They were all shocked with Matthews' name was called instead.

Later, Rieser helped Megan treat Sana, who was shot in the upper chest.

Career
She is a lieutenant in the US Army.