She was known for playing Martha McGivern in the American western television series The Californians.

Leslie starred, co-starred and appeared in other films such as Guns of Hate, The Devil Thumbs a Ride, Under the Tonto Rim, Sunset Pass, The Miracle of the Hills, Western Heritage, The Arizona Ranger, Wild Horse Mesa and I'll Remember April.

[1] She played Faith Harding in four episodes of The Gene Autry Show, 1950–1955.

[1][5] She also guest-starred in The Adventures of Kit Carson and The Cisco Kid, appearing in five episodes of each.

[6] Leslie died in July 2000 from complications of pneumonia in San Juan Capistrano, California, at the age of 74.