 She appeared in the television series "The Millionaire" (1959) as Ruth Spencer and "Mr. Lucky" (1960) as Sheila Wells, and "Bonanza" (1961) as Victoria Gates.In the 1960s, McKenzie returned to film in "Breakfast at Tiffany's" (1961) in a minor role and "The Party" (1968) as Alice Clutterbuck.She made her final screen appearance in "S.O.B."