Gray Voice

Grey Voice is a Chozo from Zebes. He was close with Old Bird, but assisted Mother Brain in allowing the Space Pirates tp take control of their home planet, becoming a leader with her. The two of them offered Samus a leading position, though she refused. Grey Voice objected to allowing Samus to stay on Zebes after she was orphaned on K2-L. He may have been the second Chozo depicted in the drawing that Samus was shown to have made in Metroid Zero Mission.