Captain Irisdina Bernhard is one of the main heroines of Schwarzesmarken and a secondary heroine in Bernhard im Schatten. She is the CO of the 666th TSF Squadron and her call sign is Schwarzesmarken 01.

A decorated war hero of the Poland retreat, no one doubts that her exemplary leadership and tactical skills are a few of the main reasons for the squadron's continued survival and success on the battlefield. She believes in leading by example, and will be among the first to go into the fray in a battle. Despite this, she is hated by some for having killed her own brother to ensure her own survival.