Debra Jo Rupp IMDbDiane in the seventies program was a popular character in the times. The lady charmed the hearts of a lot of admirers by employing her unique personality. Don was depicted as a female null of energy as well as spunk. The woman's character represented this stylish and hip subculture of the time period. Donna's impact on this 70 television show will continue to be remembered to be a important aspect in its success story.