She is set to appear on one episode of the 15th. Lewis, in the Season 8 episode ' Never Say Never.' She departed again in the Season 12 premiere, ' Canon City.' This second departure was not depicted, but rather mentioned by character Kerry Weaver four episodes later in ' Wake Up,' when she explains that Susan had accepted a tenure-track position at a hospital in Iowa City, Iowa, after having been denied tenure at County. Sherry Stringfield's first departure on the show was in 1996, when her character, Susan Lewis, moved to Phoenix, Arizona, in the Season 3 episode ' Union Station.' In 2001, Stringfield returned to the series, reprising her role of Dr. Luka Kovac and soon after, Maura Tierney as Abby Lockhart, who together formed the series longest running, and most complicated, romantic relationship. The cast remained largely unchanged until Season Five, when Kellie Martin joined the cast as medical student Lucy Knight and George Clooney became the first major departure.Īs a result, Season Six opened with addition of then-unknown Croatian actor Goran Visnjic to the cast as the tragic Dr. The first additions to the cast came in Season Two with Jeannie Boulet (Gloria Ruben) and Kerry Weaver (Laura Innes) signing on. Julianna Margulies guest starred in the pilot as Carol Hathaway before becoming part of the regular cast. Susan Lewis, Noah Wyle as John Carter, and Eriq La Salle as Dr.

The original cast consisted of Anthony Edwards as Dr.

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