Other plays with the Proscenium Club were Cecil Finn Tucker's The Optimist[b] in June 1934, Noël Coward's Hay Fever at the Central Hall, Little Collins Street in September.
[16] In January 1937 she played The Children's Hour, and in February The Vinegar Tree; in June she was acclaimed as Rosalind in As You Like It with Gertrude Johnson's newly formed National Theatre Movement[17] (NTM), all at the Princess.
In February 1940 she was in the cast of Giving the Bride Away at the Princess, starring Charles Norman, written by Gerald Kirby and "Margot Neville", an Australasian premiere.
Alongside her other commitments, in 1934 Mitchell joined the Melbourne Little Theatre, founded by Brett Randall and Hal Percy in 1931,[13] which had just moved into the old St Chad's church in Martin Street, South Yarra.
[23] Valentine Katayev's Squaring the Circle was performed at the Garrick rather than the club's theatre,[24] as was Ernest Vadja's Fata Morgana,[25] but a report of their playing Lillian Hellman's The Children's Hour[26] may have been mistaken.
[27] On Caulfield Cup night 1938 the company staged James Bridie's comedy Storm in a Teacup as a testimonial benefit for their director Brett Randall.
[31] A season of five short plays began on 14 December 1940: Lithuania by Rupert Brooke, F. Keith Manzie's For the Honor of Larratania, Edith Susan Boyd's Three Roses, followed by 'Op o' Me Thumb by Frederick Fenn and Richard Pryce and The Man in the Bowler Hat by A.
[32] In April 1941 they played another John Hastings Turner's comedy The Scarlet Lady, while Mitchell produced Sidney Rusk's one-act two-hander Fog[33] as a companion-piece.
In February 1943 she played in Robert Morley's comedy Short Story, produced by Randall at the Little Theatre, then served as his stage manager for Rodney Ackland's Dance With No Music, Henry Allan having been posted overseas with the RAAF.
[34] She produced the Little Theatre's first Christmas comedy, Frank Harvey's Saloon Bar, Randall playing a key character, but was back in the director's chair for Lionel Hall's She Passed Through Lorraine in March 1943.
[35] In April she had the chief part in Samson Raphaelson's comedy, Skylark[36] In June she produced Marguerite Steen's French for Love, starring Eva Schwarcz,[37] later involved in a very public custody case.
B. Priestley's Eden End in October, and "Gregory Parable", critic for The Advocate, was not surprised at a workmanlike presentation[45] nor for John Van Druten's Old Acquaintance, produced by Randall and directed by Mitchell in December.
[53] Jan de Hartog's Skipper Next to God, with an all-male cast, followed in April,[54] then on 28 June the Little Theatre's 120th production, Karel Čapek's The Macropulos Secret opened.
[63] In July 1949 Mitchell produced the verse play Happy as Larry by Donagh Macdonagh,[64] followed in October by William Douglas Home's Now Barabbas, another Australian premiere.
[65] Her New Year's production for 1950 was a "hiss the villain" melodrama — Henning Nelms's Only an Orphan Girl,[66] after which she left for London on a working holiday aboard the Ranchi.
[71] In 1947 she produced Dorothy L. Sayers' passion play The Just Vengeance at the Melbourne Town Hall for the Methodist Young People's Department in conjunction with the denomination's annual conference.
She produced, for the same organisation, Laurence Housman's, Francis of Assisi (with Brian James in the name part, and music composed by Dorian Le Gallienne) on 1–2 March 1948.
[73] She produced Leonid Andreyev's He Who Gets Slapped for the Melbourne University Dramatic Club's 1948 Commencement Play at the Union Theatre,[74] In March 1949 she was guest adjudicator for the Tasmanian Drama Festival, where nine groups, from across the state, competed for the Catherine Duncan Cup.