Malone appeared in a number of programs in the early days of television, including I Remember Mama, Robert Montgomery Presents, and Suspense. She played Libby on the television series Naked City from 1960 to 1963. During the same period, she played Robin Lang Bowden Fletcher on the daytime soap opera Guiding Light. She guest-starred as Kathy in a 1963 episode of 77 Sunset Strip, "Deposit with Caution". She subsequently played Clara Varner on the television series The Long Hot Summer, which ran for one season on ABC, and appeared in The Outer Limits episode "Fun and Games" and The Twilight Zone episode "Stopover in a Quiet Town". She guest-starred alongside Robert Redford in an episode of Route 66 entitled "First Class Mouliak". In 1967, she appeared in an episode of the western Bonanza as Katherine Rowen ("The Unseen Wound"). She also guest-starred in one 1968 episode of The Big Valley, "The Secret". That same year she portrayed Dr. Edith Gibson, the love interest of Goober Pyle (George Lindsey), on the next-to-the-last original episode of the television series The Andy Griffith Show, "A Girl for Goober". In 1968 she also appeared as Steve McGarrett's sister in the Hawaii Five O episode "Once Upon a Time". Later, in 1971, she performed the role of Cathleen, Rueben Kincaid's love interest, in episode 20 of The Partridge Family, "They Shoot Managers Don't They?".
