Miles Robinson is the adopted son of Susan and Gordon on Sesame Street. Susan and Gordon's adoption of Miles in 1985 (beginning with Episode 2122) was a major event on the show. Subsequent episodes dealt with the infant Miles' adjustment to his new family, and he would gradually become one of the familiar kids on the street. Miles' birthday is December 4th.
As a teenager, Miles formed his own band. In a 2006 episode, he graduated high school alongside Gabi (despite the fact that the characters' respective births on the show occurred four years apart). A flashback in this episode also revealed that Miles was shy on his first day of kindergarten.