Lada St. Edmund (also known as Lada Edmund, Jr.) (born 1 April 1947) is an American personal trainer, dancer, singer, actress and stunt performer.
 St. Edmund became a popular nationally known go-go dancer on the 1965–1966 NBC-TV rock music series "Hullabaloo".
 She later became the highest paid stuntwoman in Hollywood history.
Nargis Dutt (born Fatima Rashid, but known by her screen name Nargis; June 1, 1929 – May 3, 1981), was an Indian film actress.
 Regarded as one of the greatest actresses in the history of Hindi cinema, she made her screen debut as a child in "Talash-E-Haq" in 1935, but her acting career began in 1942 with "Tamanna" (1942).
 During a career that spanned from the 1940s to the 1960s, Nargis appeared in numerous commercially successful as well as critically appreciated films, many of which featured her alongside actor Raj Kapoor.
 She was the younger sister of the well-known actor Anwar Hussain.
The Dream Merchants is an American novel written by Harold Robbins and published in 1949.
 Set in the early 20th century, the book is a "rags-to-riches" story of a penniless young man who goes to Hollywood and builds a great film studio.
 A former Universal Studios employee, author Harold Robbins based the main character on Universal's founder, Carl Laemmle.
 With the Hollywood history in the backdrop, it is a love story.
Kalpana (8 July 1943 – 12 May 1979), born Sharat Lata, was a Kannada film actress.
 She was affectionately referred to as "Minugu Taare" ("A Shining Star") among the film fraternity.
 She was widely recognised as one of the greatest actresses of Kannada cinema who enjoyed both fan following and critical acclaim.
 She made her screen debut as a lead actress in the 1963 release "Saaku Magalu" directed by veteran B.R. Pantulu.
 During a career that spanned from the early 1960s to the late 1970s, Kalpana appeared in numerous commercially successful as well as critically appreciated films, many of which featured her alongside actor Rajkumar.
 She worked in few Tamil, Tulu, Malayalam and Telugu films as well.
 Many of her successful films were female-centric that gave ample scope for her performance.
Zhang Ruifang (15 June 1918 – 28 June 2012) was a Chinese film and theatre actress.
 She is considered one of China's greatest actresses.
Lotus Long (July 18, 1909 – September 14, 1990) was an American actress.
 She was born Lotus Pearl Shibata in New Jersey, to a father of Japanese ancestry and a mother of Hawaiian ancestry.
 She came to Southern California during the 1920s to act in Hollywood films, and usually portrayed ethnic Asian female characters in supporting roles.
 She used the name "Lotus Long" for stage and film.
 Because of her adopted surname, people generally assumed that she was of Chinese ancestry – something she later relied on to avoid mass incarceration in American internment camps with other persons of Japanese ancestry, both legal permanent residents and American citizens, during World War II.
Ruth Elizabeth "Bette" Davis (April 5, 1908 – October 6, 1989) was an American actress with Welsh ancestry of film, television, and theater.
 Regarded as one of the greatest actresses in Hollywood history, she was noted for her willingness to play unsympathetic, sardonic characters and was reputed for her performances in a range of film genres, from contemporary crime melodramas to historical and period films and occasional comedies, although her greatest successes were her roles in romantic dramas.
Jessica Phyllis Lange ( ; born April 20, 1949) is an American actress who has received worldwide acclaim for her work in film, theater, and television.
 The recipient of several awards, including two Academy Awards, one Tony Award, three Emmy Awards, five Golden Globe Awards, one Screen Actors Guild Award, and three Dorian Awards; in 1998, "Entertainment Weekly" listed Lange among the 25 Greatest Actresses of the 1990s.
 In 2016, Lange became the twenty-second thespian in history to achieve the Triple Crown of Acting.
Faye Dunaway is an American actress who has appeared in 72 motion pictures, 36 television programs, 11 plays and two music videos.
 Regarded as one of the greatest actresses of her generation, she was one of the leading movie stars during the golden age of New Hollywood.
 She made her screen debut in the 1967 film "The Happening", and rose to fame that same year with the gangster film "Bonnie and Clyde", for which she received her first Academy Award nomination.
 She followed this with the box office hit "The Thomas Crown Affair" (1968) opposite Steve McQueen.
 In 1969, she co-starred with Kirk Douglas in Elia Kazan's drama "The Arrangement".
 The following year, she had a supporting role in "Little Big Man", opposite Dustin Hoffman.
 Also in 1970, her performance in Jerry Schatzberg's experimental drama "Puzzle of a Downfall Child" earned her a Golden Globe nomination for Best Actress – Motion Picture Drama.
 She portrayed Milady de Winter in Richard Lester's "The Three Musketeers" (1973) and "The Four Musketeers" (1974).
Payment on Demand is a 1951 drama film directed by Curtis Bernhardt and starring Bette Davis and Barry Sullivan.
 The screenplay by Bernhardt and Bruce Manning chronicles a marriage from its idealistic early days to its dissolution.

Question: Payment on Demand stars an American actress who is regarded as one of the greatest actresses in Hollywood history, and who comes from what ancestry?
Answer: Welsh