Andrew Sealander Lang (also known as "Wang-Dang Lang", "W.D.L.", or "Andy") is a central character in The Broom of the System.

Lang is one of the two frat boys who barge into the dorm room of three college girls when Lenore Beadsman is visiting her sister at college.

He later marries one of the three roommates, Mindy Metalman, but becomes jaded with their life together and decides he needs to get away from her for a spell.