This character is never on screen in the archive. The name is known because other players had them on their VIP list: evidence that GM Rebel Tenebra existed, and roughly when, but there is no footage of them to watch in these recordings.
Named, never on screen 13
GM Rebel Tenebra is not visible in these recordings. Each one lists the name on a VIP list or in chat, which shows the character was around at the time.