#7: Barbara Feldon, Get Smart (1965–1970)
On Get Smart, Barbara Feldon played Agent 99, the capable and intelligent partner to the famously clueless Maxwell Smart. Introduced early in the series, she quickly became a fan favorite for balancing competence with subtle humor. Agent 99 stood out as a stylish, confident spy who often saved the day.

Following the show’s success, Feldon appeared in television movies, stage productions, and guest roles across several series. She later wrote a memoir reflecting on her acting career and life in New York. For many fans, Agent 99 remains one of the coolest and most capable female characters of 1960s television.
