'Lao' appears briefly in Taking Wing.
He is the groundsman at Wing's house and is trained in martial arts. Despite being old he is still a good opponent.
He is the first one to discover that men from H.I.V.E. are at his home to take Wing, though he probably doesn't realise that they are from H.I.V.E. Lao fights the guards, managing to hold them off for some time but is knocked unconscious. One of the men is about to shoot him with a gun but is stopped by his counterpart who reminds him that Nero doesn't like any blood spilt on retrievals.
It is not known what happens to him after that.