fɹʌm nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi wˈʌn ˈɔn, sˈoʊl hæd ðə ɹˈoʊl ʌv ˈɛl. wˈɪljəm kˈɛli, ˌɛsˈɛs ɪlˈɛvən, ðə sˈɛkənd ɪn kəmˈænd ʌvðə sˈiːkɹᵻt skwˈɑːdɹən ɔnðə kˈæptɪn mˈɪdnaɪt ɹˈeɪdɪˌoʊ ɐdvˈɛntʃɚ sˈɪɹiəl.
From 1941 on, Soule had the role of L. William Kelly, SS-11, the second in command of the Secret Squadron on the Captain Midnight radio adventure serial.