Carol Kester

Carol is the receptionist at the psychology office where Bob Hartley sees his patients, and she runs the front desk with a bemused, unbothered efficiency. She flirts with Bob shamelessly and openly, treats the parade of odd patients as background noise, and delivers her opinions in a flat, droll deadpan that suggests nothing surprises her anymore.

Marcia Wallace turns a small supporting role into something indispensable by underplaying everything — the crush on Bob never tips into desperation because her timing keeps it light, a running joke rather than a plot. She's the office's dry Greek chorus, and her unbothered line readings often land the episode's best laugh without ever leaving her desk.