Juan

Little is known about Juan, but he must work for Stephen in some capacity.

The first time America got a good look at Juan, he was spraying water from a hose onto Dr. Colbert, who has just come in second place to South Korean pop sensation, Rain, in a late-night dance/cuddle off.

Stephen just knew Juan was doing it on purpose.

Perhaps Juan is the studio gardener, or perhaps he is the building maintenance man working under Tad?