Sonja was the teenage daughter of Vinton Harper and his first wife, Mitzi. In typical teenage fashion, she often appeared bored. She was older, but she chafed when she realized that she was often overlooked by her younger and more readily obedient brother, Vinton "Buzz" Harper, Jr..
Also, like her Aunts, Ellen Harper and Eunice Harper Higgins, she also had some resentment towards Buzz. He always seemed to do the right thing, while she always messed up. She was older and got an earlier curfew, and he didn't.
She mostly acts like she was bored, and is considered a slacker, but she clearly does love her family. She often drives her grandmother, Thelma Harper crazy, much like her aunts did, when they were her age.
Since she had to share a bathroom with Buzz and her great-aunt Fran Crowley, this led to more arguments. Sonja was quite sloppy, unlike neat and orderly Buzz (another sore spot) and this made the already nervous Fran even more nervous. Later on, however, Sonja adopted a classier look and style to her appearance and clothing.
Sonja left Raytown, along with her brother, after two years to parts unknown. She, like her brother, formed a bond with her father's second wife, Naomi Harper.
Thelma Harper | Vint Harper | Naomi Harper | Buzz Harper | Sonja Harper | Ellen Harper | Eunice Harper Higgins | Ed Higgins | Bubba Higgins | Fran Crowley | Iola Boylan
Lloyd Meechum | Alberta Meechum | Alvin Tutweiler
The Family | Raytown | Episodes