Unidentified Navy captain (Reach)

This Unnamed Navy Captain was stationed on Reach during August, 2552. He, at the request of Dr. Catherine Elizabeth Halsey, upgraded John-117's neural interface to become compatible with Cortana.

When John first saw him devoid of an insignia, he became uncomfortable, but relaxed after the Captain identified himself. The Captain was never mentioned afterwards. He was most likely killed when the Covenant attacked and glassed Reach the next day.