Aaron

First son of Guardian Rembrandt, Aaron was the last Guardian to be trained in the system where all the Brotherhood's members, including the youngest, were told about its existence and worked together with their predecessors. While protecting the Floating Island, Aaron was blown off and ended up on the surface, where he discovered the Dark Legion Grandmaster Menniker working together with Overlanders. Their plan was to launch a missile at the Floating Island, which would allow them to weaken the Echidna defenses. Aaron bravely leaped onto the missile as it launched, determined to stop it from hitting the island. Menniker jumped on as well and briefly grappled with him, only to die with him when Aaron deliberately flipped a switch that caused the missile to self destruct-a switch Menniker had inadvertently revealed the purpose of in the hopes of saving his missile. Aaron's death grieved the older members of the Brotherhood, and the training system was changed so that no other Guardian would ever perish in such a manner. Aaron was also one of several Brotherhood members who, having evolved to a higher state of existence upon their deaths, tried to explain their altered nature to Knuckles.