After a hundred thousand years of isolation, 343 Guilty Spark was quirky, detached and analytical. For Spark, protocol dictated all; the slight emotion he showed for the death of an ally was truly grief only for the inconvenience of finding another to assist him. While he gladly assisted those who requested his help, if his allies decided to prevent him from completing necessary actions - such as the firing of his ring - he would turn on them without hesitation and dispatch them with lethal force. a floating orb..dont ask him about it, he's sensitive about that. Tens of thousands of years of monotonous duty spent monitoring his installation and waiting for a Reclaimer appeared to have had a significant effect on the Monitor's sanity. Spark showed many characteristics of rampancy. He loved to learn and to take records, even in the face of his installation's imminent destruction; accessing the Pillar of Autumn's shipboard databases, he was intensely fascinated about finally having access to human history up until that point, referring to the record as "all of our lost time." He also showed other odd behaviors such as humming and singing.