Despite Thalamus never having worn any form of mask, or any other method of concealing his identity, his true name has never been discovered. Little is known about him other than that his sole superhuman ability seems to be his vast intelligence and knowledge. He is most closely linked with Apex, though he did at times work with The High Command and other heroes. There are few reports of Thalamus operating on his own, and many experts attribute this to his lack of physical powers.

Costume:
Except on rare occasions, Thalamus almost always wore street clothes; faded jeans and a t-shirt were most common.