Dwayne's Wednesday Robot Romper Room

D.A.R.Y.L. (aka Data-Analysing Robot Youth Lifeform): As the acronym might suggest, Daryl is a robot in the form of a kid.  Of course, it is the government's idea of a super soldier. His creator has a change of heart, and releases Daryl from his military service. Naturally, this researcher dies in this process. Daryl ends up with a foster family, but the government has ways of finding their errant equipment. They bring Daryl in and then mark him as a failed experiment. He escapes termination, although another on the research team is not so lucky. Eventually, Daryl makes it back to his family and does not destroy the earth.

(Image courtesy of IMDB)