Cast of ER Cast of ER "ER" is an American drama series that aired on NBC from September 19, 1994 until April 2, 2009. The series featured a large ensemble cast that changed dramatically over its long run. The main cast was augmented by a wealth of recurring characters and award-winning guest stars. The original starring cast consisted of Anthony Edwards as Dr. Mark Greene, George Clooney as Dr. Douglas "Doug" Ross, Sherry Stringfield as Dr. Susan Lewis, Noah Wyle as medical student (later Dr.) John Carter, and Eriq La Salle as Dr. Peter Benton. Julianna Margulies guest starred in the pilot as
Acclaim Studios Austin founded Optimus Software in February 1988, when they created a studio of the same name in 2009. That studio was acquired by and incorporated into Team17 in December 2011. Acclaim Studios Austin Acclaim Studios Austin (formerly Iguana Entertainment) was an American video game developer based in Austin, Texas. The company was founded in 1991 by Jeff Spangenberg, previously lead designer for Punk Development, and originally located in Santa Clara, California. Iguana found first success with "Aero the Acro-Bat", moved to Austin and acquired Optimus Software (later Iguana UK) in 1993. Iguana was acquired by Acclaim Entertainment in January 1995 and