Mark Nelson is an actor, producer, and writer who has appeared in his role in "Law & Order" as Stein. Nelson was nominated for a Primetime Emmy Award in 1983 for "The Life and Adventures of Nicholas Nickleby."
Mark Nelson is an actor, producer, and writer who has appeared in his role in "Law & Order" as Stein. Nelson was nominated for a Primetime Emmy Award in 1983 for "The Life and Adventures of Nicholas Nickleby."
