Sister Kate (1989) 1 Seasons • 19 Episodes • Comedy Sister Kate is an American sitcom that aired on NBC during the 1989–1990 television season. Cast & Crew Director Stephanie Beacham Todd Mahaffey Jason Priestley Harley Cross Season 1 1989 • 19 episodes Season 1 of Sister Kate premiered on September 16, 1989 Recommendations Keywords nunorphanagereligionorphansitcom