Question: What actress born in 1968 starred in The Halcyon?

Context paragraphs:
Suet Nei: Hung Suet-nei (Chinese: 熊雪妮), known as Suet Nei or Suet Nay (Chinese: 雪妮) is a Hong Kong actress born in 1945, Hong Kong.  She is a veteran actress, having acted for many years.  She has starred in martial arts Cantonese operas, due to her skill in martial arts.  She signed with TVB in 1988.

Chae Shi-ra: Chae Shi-ra (born June 25, 1968) is a South Korean actress born in Seoul.  Since 1990, Chae has firmly established her acting career with "Eyes of Dawn" in the 1990s, she was referred to as a representative actress of the period along with Kim Hee-ae and Ha Hee-ra.

Irene Montalà: Irene Montalà is a Spanish actress born in the district of Nou Barris of Barcelona.  She is the daughter of Mercè Montalà.  She studied interpretation with Txiki Berrando and Manuel Lillo.  She has also studied dancing and singing.  Her mother tongues are Spanish and catalan, although she has also studied English and french.  She started as an actress in series "Poblenou" (TV3).  In 2001, she starred in the film "Fausto 5.0".  In 2002, she participated in the series <nowiki>"Por Palabras"</nowiki> like Barbara which in the end it wasn't finished.  In 2004 she appeared in an episodic way in the series "Cuéntame como pasó" (La 1), where she played the role of Mila.

Natacha Amal: Natacha Amal (born 4 September 1968) is a Belgian actress born to a Moroccan father and a Russian mother in Brussels.

Soher Al Bably: Soheir Al Bably (Arabic: ‎ ‎ ; born 14 February 1935) is an Egyptian actress born in Damietta.  After completing secondary school, she attended the Institute of Theatrical Arts.  ٍShe starred in the play "Madrast Al-Mushaghebeen" in 1973, and also in a stage version of the life of Raya and Sakina in 1985.  She married four times, and her second husband was Mounir Mourad.

Loryn Locklin: Loryn Locklin is an American actress born on November 3, 1968 in Los Angeles County, California

The Halcyon: The Halcyon is a British television time period drama broadcast on ITV which began airing on 2 January 2017.  It was created and written by Charlotte Jones.  Left Bank Pictures is the production company of the series which is set in 1940 and focuses on a five-star hotel at the centre of London Society and a world at war.  The series was first announced on 3 December 2015, before the official cast was announced on 4 April 2016, with Steven Mackintosh and Olivia Williams playing major roles.  The series was cancelled after one series.

Mayu Gamō: Mayu Gamō (蒲生 麻由 , Gamō Mayu , born March 16, 1982) is a Japanese actress born in Saitama Prefecture, Japan.  She has starred in many films, most notably in Tokusou Sentai Dekaranger as Succubus Hells/ Human Fatale Camille.  She reprised her role in Tokusou Sentai Dekaranger vs. Abaranger for a brief appearance.  She also starred in Kamen Rider Hibiki as Kasumi Tachibana.  Gamō is an active amateur marathon competitor and triathlete, having competed both in the Tokyo Marathon and in Hawaii, Paris, and Australia.  She completed the 2011 Lavaman Triathlon in Anaehoomalu Bay, Hawaii.

Olivia Williams: Olivia Haigh Williams (born 26 July 1968) is an English film, stage and television actress who has appeared in British and American films and television.

Yumiko Nogawa: Yumiko Nogawa (野川由美子 , Nogawa Yumiko ) (born August 30, 1944) is a Japanese actress born in Kyoto, Japan.  She has starred in several movies, notably "Gate of Flesh" (1964), a Japanese erotic film, part of a trilogy of films she made with director Seijun Suzuki.  Including "Story of a Prostitute" (1965) and "Carmen from Kawachi" (1966), these films are known as Nogawa's "Flesh Trilogy".  Nogawa has appeared in numerous films in Japan, including director Nagisa Oshima's "The Pleasures of the Flesh" (1965) and "Zatoichi and the Fugitives" (1968), the eighteenth film in the "Zatoichi" series.  She has also appeared in television series on Nippon Television, TV Tokyo, Fuji TV, and NHK.

Supporting paragraphs: The Halcyon Olivia Williams
Answer: Olivia Williams