Gertie (Supergirl Meets E.T.)

A girl with blonde pigtails was a part of the 'caring Earth family' that took E.T. in. (WC: Supergirl Meets E.T.)

Behind the scenes
Although she went unnamed in WC: Supergirl Meets E.T., she was named as "Gertie" in both E.T. the Extra-Terrestrial and NOTVALID: LEGO Dimensions. She was the daughter of Mary and the sister of Elliott and Michael.