Law & Order season 12

The following is a list of Law & Order episodes from the series' twelfth season, which originally aired from September 26, 2001 to May 22, 2002. This season is the last season to feature Dianne Wiest as DA Nora Lewin and the first to feature Elisabeth Röhm as ADA Serena Southerlyn.

Cast
Season 12 began with an unchanged cast. Serena Southerlyn (played by Elisabeth Röhm) replaced season 11's Abbie Carmichael (Angie Harmon in the role of Assistant District Attorney).

Main cast

 * Jerry Orbach as Senior Detective Lennie Briscoe
 * Jesse L. Martin as Junior Detective Ed Green
 * S. Epatha Merkerson as Lieutenant Anita Van Buren
 * Sam Waterston as Executive Assistant District Attorney Jack McCoy
 * Elisabeth Röhm as Assistant District Attorney Serena Southerlyn
 * Dianne Wiest as Interim District Attorney Nora Lewin

Recurring cast

 * Leslie Hendrix as Dr. Elizabeth Rodgers