Kate Williamson, born Robina Jane Sparks on September 19, 1931, in Ellenville, New York, was an American actress whose career spanned nearly three decades. She was the daughter of actress/singer Nydia Westman and writer/producer Salathiel Robert Sparks.

She began her acting career in 1977 and was best known for her roles on television, including appearances in shows like "Ellen" (1995), "Disclosure" (1994), and "Dahmer" (2002).

She married character actor Al Ruscio in June 1954, and the couple remained together until his death in November 2013. They had four children together, and Kate was known to her loved ones as "Jane Kate Ruscio". She passed away on December 6, 2013, following a prolonged illness, just 24 days after her husband's death. She was survived by her four children and five grandchildren.

Throughout her career, Kate Williamson appeared in numerous television shows and made-for-TV movies. Some of her notable works include roles in "Police Story," "Little House on the Prairie," "Hill Street Blues," "Newhart," "Cheers," "Falcon Crest," "Murder, She Wrote," "Red Shoe Diaries," "Profiler," "JAG," "Home Improvement," "NYPD Blue," and "7th Heaven".

Her best-known movies include "Disclosure" (1994), "Dahmer" (2002), and "Dream Lover" (1993). Her contributions to the entertainment industry were recognized with several nominations and awards, although specific details about her awards are not widely documented.