The former child actor Johnny Morrow is played by Neil Patrick Harris, himself a former child actor. However, unlike Johnny, Neil grew up to be a successful actor and his TV show, Doogie Howser, M.D. (1989) was never canceled.
The Static Doppelganger Replay created has a few notable changes from the real Static to tell which is which. Doppleganger Static's clothes are darker in color, the symbol of his shirt is imperfect, it didn't speak at all after it's mask was removed, it was a white noise in the shape of the mask.