Symbolism, Imagery, Allegory
This guy appears at Meursault's trial in Part II, Chapter Three. He's a young reporter wearing gray flannels and a blue tie who studies Meursault intently with his very bright eyes... betraying exactly zero emotion. Meursault confesses that this gives him "the odd impression of being watched by [him]self." With that subtlety, we note that this calm young reporter represents either Meursault or Albert Camus—either way, dude's an Absurdist.