George's sister

George's sister is the daughter of Neal Lundgren and Mrs. Lundgren, and the sister of George Lundgren. She first appears in "Sue Ellen's Little Sister", racing with George in the Brother-and-Sister Race at the Annual Picnic.

In the special Arthur's Perfect Christmas, she was dancing with the rest of her family. She was dressed as St. Lucy ("Sankta Lucia") in this appearance.

She has made cameos in several episodes, like in Muffy's New Best Friend when she is seen on the spinning teacup ride with George and in Bitzi's Beau she is seen walking out of Lakewood Elementary School.

Physical appearance
George's sister has skin complexion a little lighter then her brother. She has auburn dark colored hair with bows in them. She wears a red short-sleeved shirt with a white shirt under it, and wears denim shorts.

Trivia

 * Although she is George's sister, she is never seen in his house other than Arthur's Perfect Christmas.
 * Her grade is not known yet, but we do know that she goes to Lakewood. Because of this, her age has not been determined.