Instead of a head, he has a massive human jaw with eyes inside (the left eye is green, the right is blue). He wears a classic red ringmaster’s tailcoat, a black bow tie, and a top hat that hovers above his head.

Caine has total control over the Digital Circus; he devises "exciting adventures" for the captives and maintains order (for instance, by automatically censoring profanity). However, he is not human and operates according to his programmed algorithms, so he genuinely fails to understand human emotions, fears, and needs.