[3] She joined the Moroni Olsen Players in 1923 and spent eight years performing with that touring repertory company.
[5] Her other Broadway credits included One Bright Day (1952), The Male Animal (1952), The Children's Hour (1952), The Music Man (1957), and J.B. (1958),[6] Films in which Thatcher appeared included Counsel for Crime (1937), Theodora Goes Wild (1936),[4] and a series of comedies starring Andy Clyde.
[5] On radio, Thatcher portrayed Marge Mulvaney on Lora Lawton[7] and Mrs. Kramer on The Right to Happiness[8]: 447 and was a supporting player on The Mel Blanc Show.
[8] She also was heard on Aunt Jenny's Stories, Ellen Randolph, Good Neighbors, and Second Husband,[4] and she directed some radio programs.
[9] Television programs on which Thatcher appeared included I Remember Mama, Kraft Theatre, NBC Matinee Theater, Robert Montgomery Presents, and Studio One.