[2][4][5] Some of her subsequent film credits include Woman Obsessed (1959), The Horse in the Gray Flannel Suit (1968) and Welcome Home, Soldier Boys (1972).

[3][5] On television MacMichael was cast in a recurring role as Florence Pearson in the sitcom My Three Sons (1960–1961),[3] as Winnie Kirkwood in Mister Ed (1963–1965),[3][6] and as Barney Fife's girlfriend in two episodes of The Andy Griffith Show.

[3] She also performed in several episodes of Alfred Hitchcock Presents, on The Twilight Zone episode "Mr. Bevis", on the Western series The Tall Man in "Millionaire MacBean", as well as on other television series such Bachelor Father, Dennis the Menace, The Donna Reed Show, and Alcoa Premiere.

[2] By the late 1970s, she began teaching stage acting at the Pasadena Repertory Theatre inside The Hotel Carver.

One of her more notable exercises in instructing method acting was to have her students perform like a slice of bacon frying on a hot skillet.