Dee ihe na-esote paragraf a - Ka ọ na-erule afọ 1937, Moorehead sonyeere Orson Welles' Mercury Players, dịka otu n'ime ndị isi egwu ya na Joseph Cotten. (N'ihe ngosi ya na "The Dick Cavett Show" na February 19, 1973, ọ kpughere na, na 1922, ọ zutere Welles (afọ iri na ise na-eto eto) mgbe ọ dị naanị afọ asaa na Waldorf-Astoria Hotel na New York City.) Ọ rụrụ na redio ya "The Mercury Theatre on the Air", ma nwee ọrụ na-aga n'ihu na Welles na usoro "The Shadow" dị ka Margo Lane. Na 1939, Welles kwagara Mercury Theatre na Hollywood, ebe ọ malitere ịrụ ọrụ maka RKO Pictures. Ọtụtụ n'ime ndị na-eme ihe nkiri redio ya sonyeere ya, Moorehead mekwara ihe nkiri mbụ ya dị ka nne nke agwa ya, Charles Foster Kane, na "Citizen Kane" (1941), nke ọtụtụ ndị na-akatọ ihe nkiri na-ewere dị ka otu n'ime ihe nkiri kachasị mma e mepụtara. E gosipụtara Moorehead na fim nke abụọ nke Welles, "The Magnificent Ambersons" (1942), wee nata New York Film Critics Award na Academy Award nomination
maka ihe o mere. Ọ pụtakwara na "Journey Into Fear" (1943), ihe nkiri Mercury.