Susan Lewis

This article describes a work or element of fiction in a primarily in-universe style. Please help rewrite it to explain the fiction more clearly and provide non-fictional perspective. (October 2009) (Learn how and when to remove this message)

Susan Lewis, MD
Sherry Stringfield as Susan Lewis
First appearance	September 19, 1994 (1x01, "24 Hours")
Last appearance	April 2, 2009 (15x22, "And In The End")
Portrayed by	Sherry Stringfield
Duration	1994–96, 2001–05, 2009
In-universe information
Nickname	Susie, suss
Title	Resident (1994–1996) Attending (2001–2005) Chief of Emergency Medicine (2004–2005)
Occupation	Emergency Physician
Family	Henry Lewis (father) Irene “Cookie” Lewis (mother, deceased) Chloe Lewis (sister)
Spouse	Chuck Martin (ex-husband)
Significant other	Div Cvetic (ex-boyfriend) John Carter (ex-boyfriend)
Children	Cosmo Martin (son, with Chuck)
Relatives	Suzie Lewis (niece)

Susan Lewis, M.D. is a character from the medical drama series ER, portrayed by American actress Sherry Stringfield.

Susan appeared as a primary character in the pilot episode and left the show part way through in the third season. She later returned in the eighth season and remained as a member of the main cast until the start of the twelfth season. Finally, she returned to make a guest appearance in the series finale.