Morris is often remembered for her featured appearances in MGM short subjects. She appeared in several of the studio's short films including the Pete Smith Specialties, The Passing Parade, and Crime Does Not Pay series. The Crime short turned out so well that MGM expanded it into a full-length feature, Main Street After Dark in 1945, for which the actress was billed as Dorothy Ruth Morris. (Morris reminisces about her short-subjects experience in the Turner Classic Movies documentary Added Attractions: The Hollywood Shorts Story, first broadcast in 2002.)
Later career
After she married in 1943, she took a hiatus from movie making. In the late 1950s, she made guest appearances on television series such as The Untouchables, The Donna Reed Show, Rawhide, Casey Jones, and Wagon Train. She made two film appearances during the 1950s in Macabre and The Power of the Resurrection (both 1958). Her last film role was in Seconds (1966) starring Rock Hudson. Her last television appearance was in a 1971 episode of Marcus Welby, M.D..
Morris resided in Palm Springs, California until her death on November 20, 2011, at the age of 89.[7] Upon her passing, her body was donated to medical science at the University of California Riverside.[7]