Hines passed away at her Beverly Hills home in California on Friday (18Dec09).
The star enjoyed a lengthy career in TV, appearing in U.S. shows like Perry Mason and Coronado 9, before landing her most famous role as Carole Post on 1960s hit Mr. Ed, about a talking horse that only Hine's onscreen husband - Wilbur, played by Alan Young - can converse with.
Paying tribute to the late actress, Young tells the Los Angeles Times, "I lost a great friend. She was always joyous."
Hines retired from acting in 1989. Her second husband, Lee Savin, died in 1995.