Billie

Billie is a private trainer and hostess at Executive Priority Health club. She first appears in Small Favor.

Small Favor
In Small Favor, Billie cheerily let Harry Dresden and Thomas Raith into the the club when he said that his card didn't work. She met him at the elevator. When she refused to take Dresden to Ms. Demeter's office, Raith demonstrated how serious they were by twisting two heavy dumbbells together. She flew off to get clearance, then returned to escort Harry to Ms. Demeter.