Question: Who is the contemporary of Ralph Richardson that performed in plays by N.C. Hunter?

Context articles: N. C. Hunter
The Day Will Dawn
Laurence Olivier on stage and screen
Ralph Richardson
Home at Seven (film)
Ralph Richardson, roles and awards
Everyman Theatre, Cheltenham
Q Planes
The Bluenotes
The Heiress

Norman Charles Hunter, (18 September 190819 April 1971) was a British playwright whose plays attracted such notable actors to perform them as John Gielgud, Wendy Hiller, Sybil Thorndike, Ralph Richardson, Vanessa Redgrave, Michael Redgrave, and Ingrid Bergman.
 His play "A Picture of Autumn" was revived off-Broadway by the Mint Theater Company in 2013.
 Hunter's play "A Day by the Sea" will be revived off-Broadway by the Mint Theater Company in 2016.
The Day Will Dawn, released in the US as The Avengers, is a 1942 war film set in Norway during World War II.
 It stars Ralph Richardson, Deborah Kerr, Hugh Williams and Griffith Jones, and was directed by Harold French from a script written by Anatole de Grunwald, Patrick Kirwan and Terence Rattigan, based on a story by Frank Owen.
 The music by Richard Addinsell was performed by the London Symphony Orchestra conducted by Muir Mathieson.
Laurence Olivier (1907–1989) was an English actor who, along with his contemporaries Ralph Richardson and John Gielgud, dominated the British stage of the mid-20th century.
 He also worked in films throughout his career, playing more than fifty cinema roles.
 From 1935 he performed in radio broadcasts and, from 1956, had considerable success in television roles.
Sir Ralph David Richardson (19 December 1902 – 10 October 1983) was an English actor who, along with his contemporaries John Gielgud and Laurence Olivier, dominated the British stage of the mid-20th century.
 He worked in films throughout most of his career, and played more than sixty cinema roles.
 From an artistic but not theatrical background, Richardson had had no thought of a stage career until a production of "Hamlet" in Brighton inspired him to become an actor.
 He learned his craft in the 1920s with a touring company and later the Birmingham Repertory Theatre.
 In 1931 he joined the Old Vic, playing mostly Shakespearean roles.
 He led the company the following season, succeeding Gielgud, who had taught him much about stage technique.
 After he left the company, a series of leading roles took him to stardom in the West End and on Broadway.
Home at Seven is a 1952 British mystery drama film directed by and starring Ralph Richardson.
 It also featured Margaret Leighton, Jack Hawkins, Campbell Singer and Michael Shepley.
 It was based on the play "Home at Seven" by R. C. Sherriff.
 The film remains Richardson's only work as a film director.
 It follows a man who returns to his suburban home one evening to discover that he has been missing for 24 hours, despite not remembering the 'lost' day.
Sir Ralph Richardson (1902–1983) was an English actor who appeared on radio, film, television and stage.
 Described by "The Guardian" as "indisputably our most poetic actor", and by the director David Ayliff as "a natural actor ... [who] couldn't stop being a perfect actor", Richardson's career lasted over 50 years.
 He was—in the words of his biographer, Sheridan Morley—one "of the three great actor knights of the mid-twentieth century", alongside Laurence Olivier and John Gielgud.
Everyman Theatre is theatre is based in Regent Street, Cheltenham.
 There are two stages in the building - the 694 seat main stage and the 60 seat Studio Theatre, originally named The Richardson after Ralph Richardson.
Q Planes (known as Clouds Over Europe in the United States) is a 1939 British comedy spy film starring Ralph Richardson, Laurence Olivier and Valerie Hobson.
 Olivier and Richardson were a decade into their 50-year friendship and theatrical collaboration and had just completed "Othello", with Richardson in the title role and Olivier as Iago, when this film was made.
 The film was produced by Irving Asher, an American, with British film impresario Alexander Korda as executive producer.
The Bluenotes were a vocal group from Asheboro, North Carolina featuring Tom Underwood, Joe Tanner (who also played guitar), Pat Patterson, and Ralph Harrington.
 They recorded for the Colonial and Brooke record labels.
 Their first recordings were released as the Blue Notes in 1955 and 1956 for Colonial records of Chapel Hill,N.C. By their third Colonial release, "Page One/Mighty Low" (released in 1957) they reverted to spelling their group name as one word (Bluenotes)which continued throughout the group's lifespan.
 Besides their own releases,they also created vocal backing for other Colonial recording artists including George Hamilton IV (on his hit song "A Rose And A Baby Ruth"), Johnny Dee (Loudermilk) on several of his Colonial releases, Billy Craddock,Doug Franklin and Henry Wilson.
 "My Lucky Love/Drizzlin' Rain" (Colonial 777), which they recorded with Doug Franklin,was their first release to chart reaching # 73 in September 1958.
 Moving over to the Brooke label in Asheboro, N.C. in 1959, the Bluenotes had their second hit record with their first release for the label "I Don't Know What It Is / You Can't Get Away From Love" (Brooke 111) which reached # 61 in early 1960.
 They released two other singles for Brooke Records(one featuring group member Ralph Harrington who also had some occasional solo releases on Colonial) before disbanding.
The Heiress is a 1949 American drama film directed by William Wyler and starring Olivia de Havilland as Catherine Sloper, Montgomery Clift as Morris Townsend, and Ralph Richardson as Dr. Sloper.
 Written by Ruth and Augustus Goetz, adapted from their 1947 play "The Heiress".
 The play was suggested by the 1880 novel "Washington Square" by Henry James.
 The film is about a young naive woman who falls in love with a handsome young man, despite the objections of her emotionally abusive father who suspects the man of being a fortune hunter.