Mass Effect: Return from the Shadows
-A follower of the Hand, Oolm was drawn to them by his belief in the Enkindlers. Because the Collectors (or what remains of the Enkinlders/Protheans) followed the Reapers, Oolm believes that the Reapers must have had some reason behind their destructive ways. Once shown the message of the Endless, Oolm found his answer and soon joined the Hand
-Oolm is well known for his work in neuroscience and neuro-biotics, though the latter has earned him some infamy due to the whether or not his experiments with altering brain shape and chemical composition using biotics is ethical or not.