Catherine McLeod (July 2, 1921 – May 11, 1997) was an American actress who made over 60 television and movie appearances between 1944 and 1976.

[2] MacLeod's films included the leading role as a concert pianist in Frank Borzage's I've Always Loved You (1946), Courage of Lassie (1946), The Fabulous Texan (1947), Borzage's That's My Man (1947), Old Los Angeles (1948), My Wife's Best Friend (1952), A Blueprint for Murder (1953), William Witney's The Outcast (1954), Ride the Wild Surf (1964), and Lipstick (1976).

On October 10, 1950, McLeod starred in "Criminal's Mark" on the TV version of Suspense.

McLeod appeared in dozens of other series, including The Millionaire, Meet McGraw, Richard Diamond, Private Detective, Maverick with James Garner in the episode "A Rage for Vengeance," 77 Sunset Strip, Mickey Spillane's Mike Hammer, Bronco, Colt .45, Lawman (in the 1961 episode "The Prodigal Mother," with child actor Billy Booth), Bonanza, Hazel, Hawaiian Eye, Have Gun - Will Travel, The Outer Limits, The Virginian, Gunsmoke (as “Letty Rickers”, an abused wife of a homesteader turned cowardly killer in S2E29’s “Wrong Man” - played by her real-life husband Don Keefer), and the "Ten Thousand Horses Singing" episode of Studio One opposite James Dean and John Forsythe.

[4] McLeod's greatest impact upon American consciousness by far, however, was as purveyor of one of the most ubiquitous catchphrases of its era when she portrayed the woman in the 1963 headache remedy Anacin television commercial, who plaintively but irritably said, "Mother, please!