The character was particularly notable for a number of characteristics. Peel is a strong heroine; she is rarely defeated in fights and is capable of rescuing Steed if he is in trouble. She is a master of martial arts and a formidable fencer. A certified genius, she specialises in chemistry and other sciences. She is often seen in episodes engaging in artistic hobbies and had success in industry at the helm of the company of her late father, Sir John Knight. Her husband, Peter Peel, was a pilot whose plane had disappeared over the Amazonian forest. He was presumed dead for many years, and Peel went on to work with Steed. She drove a convertible Lotus Elan at high speeds, and convincingly portrayed any series of undercover roles, from nurse to nanny. Her favourite guise was that of a women's magazine reporter, trying to interview big business tycoons and rich playboys. The name "Emma Peel" is a play on the phrase "Man Appeal" or "M. Appeal", which the production team stated was one of the required elements of the character. (Diana Rigg was never comfortable in her position as a world-famous sex-symbol.)