Special Agent Fritz Ann Dietrich was an FBI Agent who was active in battling organized crime in an interstate capacity. Fritz Ann had short brown hair that she typically wore with bangs. She had large eyes, a straight nose and a wide mouth. She occasionally wore eyeglasses. Fritz Ann had an informal manner, preferring to be addressed by her first name, rather than as "Agent Dietrich". Fritz Ann expressed an attraction to Sam Catchem, and engaged in playful flirtation with him. This often made Sam (who was happily married) uncomfortable and he tried to avoid her company when possible.