Mary Tyler Moore (December 29, 1936 – January 25, 2017) was an American actress, known for her roles in the television sitcoms "The Mary Tyler Moore Show" (1970–1977), in which she starred as Mary Richards, a single woman working as a local news producer in Minneapolis, and "The Dick Van Dyke Show" (1961–1966), in which she played Laura Petrie, a former dancer turned Westchester homemaker, wife and mother.
 Her film work includes 1967's "Thoroughly Modern Millie" and 1980's "Ordinary People", in which she played a role that was very different from the television characters she had portrayed, and for which she was nominated for an Academy Award for Best Actress.
Thoroughly Modern Millie is a 1967 American musical-romantic comedy film directed by George Roy Hill and starring Julie Andrews.
 The screenplay by Richard Morris, based on the 1956 British musical "Chrysanthemum", focuses on a naive young woman who finds herself in the midst of a series of madcap adventures when she sets her sights on marrying her wealthy boss.
 The film also stars Mary Tyler Moore, James Fox, John Gavin, Carol Channing, and Beatrice Lillie.
John Gavin (born Juan Vincent Apablasa; April 8, 1931) is an American film actor who was the United States Ambassador to Mexico from 1981 to 1986 and President of the Screen Actors Guild from 1971 to 1973.
 He is best known for his performances in the films "Imitation of Life" (1959), "Spartacus" (1960), "Psycho" (1960), and "Thoroughly Modern Millie" (1967), playing leading roles in a series of films for producer Ross Hunter.
James Howard Bryant (born June 2, 1929) is a singer, arranger and composer.
 He is most well known for providing the singing voice of Tony (played onscreen by Richard Beymer) in the 1961 film musical "West Side Story".
 While he received no screen credit, he states that Beymer was "a nice guy, and every time he did an interview he would mention my name."
 He also sang for James Fox in the 1967 film musical "Thoroughly Modern Millie", and sang in "The Telephone Hour" number in "Bye Bye Birdie".
 He also sang in the group that performed the theme song of the TV series "Batman".
Beatrice Gladys Lillie (May 29, 1894 – January 20, 1989), known as Bea Lillie, was a Canadian-born British actress, singer and comedic performer.
Sutton Lenore Foster (born March 18, 1975) is an American actress, singer and dancer.
 She is known for her work on the Broadway stage, for which she has received two Tony Awards for Best Performance by a Leading Actress in a Musical, in 2002 for her role as Millie Dillmount in "Thoroughly Modern Millie", and in 2011 for her performance as Reno Sweeney in "Anything Goes".
 Her other Broadway credits include "Little Women", "The Drowsy Chaperone", "Young Frankenstein", "Shrek the Musical", and "Violet".
 On television, Foster played the lead role in the short-lived ABC Family comedy-drama "Bunheads" from 2012 to 2013.
 Since March 2015, she has starred in the TV Land comedy-drama "Younger".
Mary Tyler Moore (December 29, 1936 – January 25, 2017) was an American actress, known for her roles in the television sitcoms "The Mary Tyler Moore Show" (1970–1977), in which she starred as Mary Richards, a thirtyish single woman who worked as a local news producer in Minneapolis, and "The Dick Van Dyke Show" (1961–1966), in which she played Laura Petrie, a former dancer turned Westchester homemaker, wife and mother.
 Her notable film work includes 1967's "Thoroughly Modern Millie" and 1980's "Ordinary People", in which she played a role that was very different from the television characters she had portrayed, and for which she was nominated for an Academy Award for Best Actress.
Thoroughly Modern Millie is a musical with music by Jeanine Tesori, lyrics by Dick Scanlan, and a book by Richard Morris and Scanlan.
 It is based on the 1967 film of the same name, which itself was based on the British musical "Chrysanthemum", which opened in London in 1956.
 "Thoroughly Modern Millie" tells the story of a small-town girl, Millie Dillmount, who comes to New York City to marry for money instead of love – a thoroughly modern aim in 1922, when women were just entering the workforce.
 Millie soon begins to take delight in the flapper lifestyle, but problems arise when she checks into a hotel owned by the leader of a white slavery ring in China.
 The style of the musical is comic pastiche.
 Like the film on which it is based, it interpolates new tunes with some previously written songs.
Carol Channing (born January 31, 1921) is an American actress, singer, dancer, comedian, and voice artist.
 She won the Golden Globe Award and was nominated for the Academy Award for Best Supporting Actress for her performance as Muzzy Van Hossmere in "Thoroughly Modern Millie" (1967).
 Other film appearances include "The First Traveling Saleslady" (1956) and "Skidoo" (1968).
 On television she has made many appearances as an entertainer on variety shows, from the "The Ed Sullivan Show" in the 1950s to "Hollywood Squares".
 She is also known for her performance as The White Queen in a 1985 production of "Alice in Wonderland".
Mary is an American sitcom that aired on CBS from December 11, 1985, to April 8, 1986.
 The series stars Mary Tyler Moore in her return to series television after an absence of over six years, during which time she appeared on Broadway in "Whose Life Is It Anyway?
" and in the dramatic film "Ordinary People".
 After "The Mary Tyler Moore Show", her subsequent ventures into series television on the variety shows "Mary" (1978) and "The Mary Tyler Moore Hour" (1979) had been short-running ratings disasters, and Moore decided to return to the sitcom format which had brought her the greatest television success; the sitcom nonetheless met the same fate as the variety shows.

Question: What is the nickname of the actress who costarred with Julie Andrews, Mary Tyler Moore, James Fox, John Gavin, and Carol Channing in Thoroughly Modern Millie?
Answer: Bea Lillie