Born in Worcester, Massachusetts, Marlowe was an actress best known for her role from 1973 to 1977 as boardinghouse owner/operator Flossie Brimmer in 27 episodes of the drama The Waltons.

[1] Marlowe also played Sara Andrews in 23 episodes of the sitcom The Governor and J.J., starring Dan Dailey,[2] and she was cast in films such as The Thomas Crown Affair, North by Northwest (as Anna, the housekeeper who holds Roger O. Thornhill at gunpoint), and Westworld.

Marlowe was cast in the 1959-1960 television season as Martha Commager, the owner of a boarding house, in seven episodes of Law of the Plainsman.

Her other guest-starring roles included Schlitz Playhouse, 77 Sunset Strip, Hawaiian Eye, The Millionaire, Shotgun Slade, Hotel de Paree, General Electric Theater, 87th Precinct, Frontier Circus, The Alfred Hitchcock Hour, The Donna Reed Show, Petticoat Junction, Going My Way, Twelve O'Clock High, Family Affair, “Bewitched”,The Green Hornet, Lassie, Bridget Loves Bernie, Here Come the Brides, Barnaby Jones, Medical Center, Cade's County, Cannon, The Rockford Files, The Big Valley, The Guns of Will Sonnett, The F.B.I., Marcus Welby, M.D., The Outer Limits, The Bob Newhart Show, The Streets of San Francisco, and most notably her two appearances on The Twilight Zone: the 1961 episode "Back There" and the 1964 episode "Night Call".

[4] Their son later became a television producer,[5] and daughter Tracey worked as a personal assistant to many people in the entertainment industry.