American actor known as Mike Seaver's best friend Richard Stabone for the first four seasons of the series Growing Pains. He also appeared in episodes of the series 21 Jump Street and My Two Dads.
He made his debut in an episode of Adam-12 called Rampart Division: The Senior Citizens in an uncredited role as a little boy.
It was determined that he took his own life when a group of his family and friends found his body hanging from a tree.
His father was actor Walter Koenig and he along with his wife Judy had given Andrew the birth name of Joshua Andrew.
He played The Joker in a fan film called Batman: Dead End which avid comic book fan and film director Kevin Smith called possibly the best Batman film he had seen at that time.