Question: Who were the co-stars of the actor who portrayed Ethan Rom on the television series "Lost," in the American crime drama film directed by Todd Field?

Context paragraphs:
Net Worth (2000 film): Net Worth is a 2000 drama film that starred Todd Field, Craig Sheffer, Daniel Baldwin, Michael T. Weiss, Tara Wood, Ernie Garrett, and Alix Koromzay.  It was directed by Kenny Griswold from a script written by Kenny Griswold and Bill Kerig.

In the Bedroom: In the Bedroom is a 2001 American crime drama film directed by Todd Field, and dedicated to Andre Dubus, whose short story "Killings" is the source material on which the screenplay, by Field and Robert Festinger, is based.  The film stars Tom Wilkinson, Sissy Spacek, Nick Stahl, Marisa Tomei, and William Mapother.

Close to Home (2005 TV series): Close to Home is an American crime drama television series co-produced by Warner Bros.  Television and Jerry Bruckheimer Television for CBS.  While in pre-production the series was known as "American Crime".  It first aired from October 4, 2005 to May 11, 2007 and starred actress Jennifer Finnigan as Annabeth Chase, a Deputy Prosecutor for Marion County, Indiana.  Created by Jim Leonard, the series was primarily filmed in Southern California.  The score composer was Michael A. Levine.

Little Children (film): Little Children is a 2006 American drama film directed by Todd Field.  It is based on the novel of the same name by Tom Perrotta, who along with Field wrote the screenplay.  It stars Kate Winslet, Patrick Wilson, Jennifer Connelly, Jackie Earle Haley, Noah Emmerich, Gregg Edelman, Phyllis Somerville and Will Lyman.  The original music score is composed by Thomas Newman.  The film screened at the 44th New York Film Festival organized by the Film Society of Lincoln Center.  It earned 3 nominations at the 79th Academy Awards: Best Actress for Winslet, Best Supporting Actor for Haley, and Best Adapted Screenplay for Field and Perrotta.

William Mapother: William Reibert Mapother Jr. ( ; born April 17, 1965) is an American actor, best known for his role as Ethan Rom on the television series "Lost".

New Port South: New Port South is a 2001 drama film.  The film is set in the fictional town of New Port, near Chicago.  It stars Will Estes, Todd Field, and Blake Shields, was written by James Hughes and directed by Kyle Cooper.  The soundtrack is by Telefon Tel Aviv.

American History X: American History X is a 1998 American crime drama film directed by Tony Kaye, written by David McKenna, and stars Edward Norton, Edward Furlong, Fairuza Balk, Stacy Keach, Elliott Gould, Avery Brooks, Ethan Suplee, and Beverly D'Angelo.  The film was released in the United States on October 30, 1998 and was distributed by New Line Cinema.

Broken Vessels: Broken Vessels is a 1999 medical drama film directed by Scott Ziehl and written by Ziehl along with David Baer and John McMahon.  The film debuted at the Los Angeles Independent Film Festival and marked Ziehl's directorial debut.  It stars Todd Field, Jason London, Roxana Zal, Susan Traylor, and James Hong.  The film follows a rookie paramedic and his hardened drug-addicted partner as they take calls and cruise L.A. in their ambulance.  Although it shares the same name as the book, it has nothing to do with the Andre Dubus essay collection of the same name.

Killer Women: Killer Women is an American crime drama television series that aired on ABC from January 7 to March 25, 2014.  The series is based on the Argentine crime drama "Mujeres Asesinas", which was adapted into an American setting by writer Hannah Shakespeare.  Shakespeare also serves as an executive producer alongside Sofía Vergara, Ben Silverman, Luis Balaguer, and Martin Campbell for Pol-Ka Productions, Silverman's Electus Productions, Vergara and Balaguer's Latin World Entertainment, and ABC Studios.  The pilot episode was directed by Lawrence Trilling.

The Onion Field (film): The Onion Field is a 1979 American crime drama film directed by Harold Becker and written by Joseph Wambaugh, based on his 1973 true crime book "The Onion Field".  The film stars John Savage, James Woods, Franklyn Seales and Ted Danson in his film debut.

Supporting paragraphs: In the Bedroom William Mapother
Answer: Tom Wilkinson, Sissy Spacek, Nick Stahl, Marisa Tomei