Lynn Fontanne (/fɒnˈtæn/; 6 December 1887 — 30 July 1983) was a British actress and major stage star in the United States for over 40 years. She teamed with her husband Alfred Lunt.

She lived in the United States for more than 60 years but never relinquished her British citizenship. Lunt and Fontanne shared a special Tony Award in 1970. They both won Emmy Awards in 1965, and Fontanne was a Kennedy Center honoree in 1980.

Born Lillie Louise Fontanne in Woodford, London, Fontanne first drew popular acclaim in 1921 playing the cliché-spouting title role in the George S. Kaufman-Marc Connelly's farce, Dulcy. Dorothy Parker memorialized her performance in verse:

Dulcy, take our gratitude, / All your words are golden ones. / Mistress of the platitude, / Queen of all the old ones. / You, at last, are something new / ’Neath the theatre's dome. I'd / Mention to the cosmos, you / Swing a wicked bromide. ...

She soon became celebrated for her skill as an actress in high comedy, excelling in witty roles written for her by Noël Coward, S. N. Behrman and Robert Sherwood. However, she enjoyed one of the greatest critical successes of her career as Nina Leeds, the desperate heroine of Eugene O'Neill's controversial nine-act drama, Strange Interlude.

Dame Margaret Natalie "Maggie" Smith, DBE (born 28 December 1934) is an English film, stage and television actress. She has had an extensive career both on screen and in live theatre, and is known as one of Britain's pre-eminent actors. She made her stage debut in 1952 and is still performing after 60 years. She has won numerous awards for acting, both for the stage and for film, including seven BAFTA Awards (five competitive awards and two special awards including the Bafta Fellowship in 1996), two Academy Awards, two Golden Globes, two Emmy Awards, a Laurence Olivier Award, two SAG Awards and a Tony Award. Dame Maggie is the only actor ever to win this collective of awards and is one of the most successful and acclaimed actors of the film era.

Her critically acclaimed films include Othello (1965), The Prime of Miss Jean Brodie (1969), Travels with My Aunt (1972), California Suite (1978), Clash of the Titans (1981), A Room with a View (1985) and Gosford Park (2001). She has also appeared in a number of widely-popular films, including Hook (1991), Sister Act (1992) and as Professor Minerva McGonagall in the Harry Potter film series. She currently stars in the critically acclaimed drama Downton Abbey as Violet Crawley, the Dowager Countess of Grantham, for which she has won an Emmy.

Helen Hayes Brown (October 10, 1900 – March 17, 1993) was an American actress whose career spanned almost 70 years. She eventually garnered the nickname "First Lady of the American Theatre" and was one of twelve people who have won an Emmy, a Grammy, an Oscar and a Tony Award. Hayes also received the Presidential Medal of Freedom, America's highest civilian honor, from President Ronald Reagan in 1986. In 1988, she was awarded the National Medal of Arts. The annual Helen Hayes Awards, which have recognized excellence in professional theatre in the greater Washington, D.C. area since 1984, are her namesake. In 1955 the former Fulton Theatre on 46th Street in New York City's Broadway theater district was renamed the Helen Hayes Theatre. When that venue was torn down in 1982, the nearby Little Theatre was renamed in her honor.

Helen Hayes was born in Washington D.C. on October 10, 1900. Her mother, Catherine Estelle (née Hayes), or Essie, was an aspiring actress who worked in touring companies. Her father, Francis van Arnum Brown, worked at a number of jobs, including as a clerk at the Washington Patent Office and as a manager and salesman for a wholesale butcher. Hayes' Irish Catholic maternal grandparents immigrated from Ireland during the Irish Potato Famine; her mother was a great-niece of Irish singer Catherine Hayes.

Alfred Lunt (August 12, 1892 – August 3, 1977) was an American stage director and actor, often identified for a long-time professional partnership with his wife, actress Lynn Fontanne. Broadway's Lunt-Fontanne Theatre was named for them.

Lunt received two Tony Awards, an Academy Award nomination for Best Actor for 1931's The Guardsman and an Emmy Award for the Hallmark Hall of Fame's production of The Magnificent Yankee. He became a star in 1919 as the buffoonish lead in Booth Tarkington's Clarence, but soon distinguished himself in a variety of roles. The roles ranged from the Earl of Essex in Maxwell Anderson's Elizabeth the Queen, to a song-and-dance man touring the Balkans in Robert E. Sherwood's Idiot's Delight, a megalomaniacal tycoon in S. N. Behrman's Meteor and Jupiter himself in Jean Giraudoux's Amphitryon 38. His appearances in classical drama were infrequent, but he scored successes in Shakespeare's The Taming of the Shrew and Chekhov's The Seagull (in which Lunt played Trigorin, his wife played Arkadina, and Uta Hagen made her Broadway debut in the role of Nina). He was described by director and critic Harold Clurman as "universally acclaimed the finest American actor in the generation which followed John Barrymore; the Lunts are absolute angels."

Katharine Houghton Hepburn (May 12, 1907 – June 29, 2003) was an American actress of film, stage, and television. Known for her headstrong independence and spirited personality, Hepburn's career as a Hollywood leading lady spanned more than 60 years. Her work came in a range of genres, from screwball comedy to literary drama, and she received four Academy Awards for Best Actress—a record for any performer. Hepburn's characters were often strong, sophisticated women with a hidden vulnerability.

Raised in Connecticut by wealthy, progressive parents, Hepburn began to act while studying at Bryn Mawr College. After four years in the theatre, favorable reviews of her work on Broadway brought her to the attention of Hollywood. Her early years in the film industry were marked with success, including an Academy Award for her third picture, Morning Glory (1933), but this was followed by a series of commercial failures. In 1938 she was labeled "box office poison". Hepburn masterminded her own comeback, buying out her contract with RKO Radio Pictures and acquiring the film rights to The Philadelphia Story, which she sold on the condition that she be the star. In the 1940s she was contracted to Metro-Goldwyn-Mayer, where her career focused on an alliance with Spencer Tracy. The screen-partnership spanned 25 years, and produced nine movies.