Dr. Merlot

Doctor Merlot is the main scientist of the Dark Redemption since Duncan and Axel went to get him from the island he was hiding so he could continue working in his investigations with grimms and also support his group. He used to be a scientist in the Covenant but they expulsed due to the danger his experiments represented for the scientists over there.

This Dr Merlot is a different one from RWBY as he is an alternative version of himself in the alternative universe where the Beacons of Darkness exist.

Appearance
Merlot is an old man with a robotic, glowing red eye. He also has a robotic right arm with red inner circuits.

He has disheveled gray hair, a matching mustache and beard, and prominent eyebrows. He wears a gray jacket with a high collar and a red shirt underneath.

Personality
Due to the defeat by Team RWBY he has become paranoid but still capable to concentrate in his experiments in the Dark Redemption's labs and it's clear he only cares about it and not about the group or boss.