Kimberly Ann Possible (usually known as Kim Possible) (voiced by Christy Carlson Romano) is the title character from Disney's animated television series Kim Possible
Kim debuted in the series opening episode in June 2002, Kim Possible, episode 1, Crush (7 June 2002) and starred in all 65 episodes of Season 1-3. She made her Season 4 debut in an episode broadcast exclusively over the Disney Channel website in February 2007, returned to Disney Channel on the 10th of February. Kim Possible, episode 66, Ill-Suited (10 February 2007)
Kim is a high school student and freelance hero/secret agent. She is unusual in this field in that she has no secret identity - For the most part, her classmates are aware of her work but do not comment on it unless it affects them directly. At school, she is cast as one of the "popular kids," head of the cheerleading squad and a straight-A student, rather than as a misunderstood outsider/underdog.
Her first and last name is a take on the word "impossible". She is voiced by Christy Carlson Romano. A Disney's Behind The Ears documentary revealed that Kim's also based upon her (in both appearance and interests)