Fox went on to perform in J.B. Priestley's play Dangerous Corner, directed by Tyrone Guthrie; he was billed as "a great discovery". He rejected an offer to join the Broadway cast of the play, opting to join a company led by John Gielgud at the Old Vic Theatre. He played opposite Peggy Ashcroft in As You Like It, and their performance was painted by Walter Sickert. 1934 was Fox's busiest year to date; he performed in five stage plays in the West End. One was Precipice, a play about a ballet, which co-starred dancer Anton Dolin. After a short spell on Broadway, Fox returned to Britain. In the US he had been offered an audition by Warner Bros., but turned it down since his new love, Patricia Hillard was acting in Oxford. After being spotted dining together at the Savoy Grill by Priestley, who said he had never seen a couple "so much in love", they had a successful run in Priestley's play I Have Been Here Before which ran from 1937 until 1938.
