The Luminoth C-Rch was one of the ten Keybearers sent to collect the Sky Temple Keys. He is called "judicious" by A-Kul. In the end, his ammunition was exhausted and he planned one final assault on the Ing using only melee combat. He died in the Dynamo Works of Sanctuary Fortress. Samus later recovers his key in the Hive Dynamo Works of the Ing Hive.
- "Judicious C-Rch. In a small corridor within the depths of a high fortress, he lies silently." —Metroid Prime 2: Echoes Logbook "C-Rch's Key" (Metroid Prime 2: Echoes)
- "Let this be the final testament of warrior C-Rch. I have no more shells for my weapons. For the enemy, I have naught but the blade and fist. Let them come. They wait in the works, hissing, and slithering like beasts. Let them. When my war cry comes, there will be a dread final reckoning. Come forth, hated enemy. Let there be an end!" —Metroid Prime 2: Echoes Logbook "C-Rch's Testament" (Metroid Prime 2: Echoes)