"Welcome Back, Carter!" is a first episode of the second season of ER. The episode aired on NBC on September 21, 1995. It was written by John Wells and directed by Mimi Leder. It has John Carter arriving late and Peter Benton isn't thrilled about it while Mark Greene has to find two doctors to pick as the Chief Resident of the ER, which includes Dr. Kerry Weaver. Laura Innes made her first appearance as Dr. Weaver.