A butler administered a gentleman's household.
Reggie, here, was not a butler. How could he be? Given his boss was a Community Organizer, not a gentleman? His was a lower station. Reggie was a valet.
I.e., Reggie was Zero's personal step-and-fetch-it and whatever. Not that there is anything wrong with that. Especially if he keeps talking.
Thanks for the clarification. I am now clear on the difference between the butler and the valet. This will come in handy when I watch British stuff on tv.