Moonwatcher

Moonwatcher was the son of Guardian Steppenwolf and the second of the Guardians to possess a link to the Chaos Emeralds of Angel Island.

Guardian
Working as a team with his father, Moonwatcher protected the Echidnas for many years. Moonwatcher was the first Guardian to be brought to Haven by his father, where the two would rotate their duties of protecting Echidnaopolis. He became a member of the original Brotherhood of Guardians along with his son Harlan - the name of the group having been conceived by his grandson Rembrandt. Not much is known about Moonwatcher’s tenure as Guardian except that he defeated the Dark Legion during one of their many breakouts of the Twilight Zone, sending them back to their imprisonment. After the death of Aaron, Moonwatcher and Harlan felt that Rembrandt's new method of training Jordan was wrong and that they should all participate in his training, though Steppenwolf pointed out Jordan should learn slowly before his responsibilities were increased. (KtE: #18, #25)

After Death
Dying at some point of either old age or other causes, he would appear at Knuckles the Echidna's funeral along with the other deceased Guardians, and mistook Chao messengers from Aurora as arriving to guide his father to the Chaos Force. (StH: #121)

Background Information
Moonwatcher is one of the few members of the Brotherhood that wears a full-out uniform. His uniform slightly resembles that of the Starfleet attire from Star Trek, and with his visor is similar in appearance to Geordi La Forge.