In December 1955, she married John Bromfield, star of the syndicated crime drama Sheriff of Cochise, from whom she was divorced in 1959. In 1972, she managed to acquire one of her biggest roles, as Henrietta Hippo on the television show New Zoo Revue. Later, Thomas was married to Bruce Hoy and participated in a number of charity benefits, such as the Professional Dancers Society. In 1960 it was reported that she was in a relationship with baseball player\manager Leo Durocher.

She died on October 20, 2013, after suffering a fall at her Van Nuys home. She was 81 years old. Her husband, Bruce Hoy died on January 31, 2014.