ˌɔn dˈeɪtaɪm tˈɛlᵻvˌɪʒən, hˈæɹɪŋtən wʌzðə sˈɛkənd ˈæktɹəs tə plˈeɪ kˈæθɹɪn kˈeɪt mˈɑːɹtɪn ˌɔn ˈɔːl maɪ tʃˈɪldɹən, ɐ ɹˈoʊl ʃiː plˈeɪd fɹʌm ˈɜːli fˈɛbɹuːˌɛɹi ʌntˈɪl ˈɔːɡəst nˈaɪntiːnhˈʌndɹɪd sˈɛvənti.
On daytime television, Harrington was the second actress to play Katherine 'Kate' Martin on All My Children, a role she played from early February until August 1970.