Elliott (Supergirl Meets E.T.)

A boy with ginger hair was a part of the 'caring Earth family' that took E.T. in. He helped E.T. into a disguise, then rode away on his bicycle. (WC: Supergirl Meets E.T.)

Behind the scenes
Although he went unnamed in WC: Supergirl Meets E.T., he was named as "Elliott" in both E.T. the Extra-Terrestrial and NOTVALID: LEGO Dimensions.