I see that you reversed a change I made to the page for Shuma-Gorath. Are you an administrator, because I plan on changing it back. Yes, he is one of the Many-Angled Ones but official sources says that the "Many-Angled Ones" and "Old Ones" are the same, and that Shuma-Gorath is the Master of the Old Ones. For your information, see the official Marvel sources;
1. Marvel Fact Files #46 (2013) pg. SH-01: "He is one of the Old Ones, a race of ancient beings who are able to conquer dimensions at will. Also known as the Many-Angled Ones, they ruled Earth millions of years ago, where they demanded human sacrifice and feasted on mankind's ancestors."
Marvel Universe Horror 2005
Occupation: "Lord of Chaos, Master of the Old Ones..."