Jack de Leon (pseudonym Noel Doon; 12 August 1902 – 21 September 1956) was a Panamanian-born British theatre manager and impresario.
It was renamed the Q Theatre and reopened on 26 December 1924 with the comedy The Young Person in Pink by Gertrude E. Jennings, where Beatrice made her professional debut.
[1] Under the pseudonym Noel Doon and in collaboration with Steve Donohue, de Leon wrote his first play The Man at Six and was produced at the Q on 16 January 1928.
[2][4] In March 1929, the de Leons relinquished control of the Q Theatre after drawing criticism of their contractual arrangements with new writers and an array of practical problems.
Two years later, the couple renewed their association with the Q when Beatrice reopened the theatre for a series of plays performed by her drama school students.