Katharine Hepburn was already a household name by the time Rock Hudson emerged on the acting scene. In 1933, she won an Oscar for best actress in the film “Morning Glory.” Undeterred by some less-than-successful stints on Broadway and other films, she persevered in the industry to win two more Oscars in the 1960s for “Guess Who’s Coming to Dinner” and “The Lion in Winter” (via Britannica).
Though Katharine Hepburn continued to have box office success and critical acclaim while Rock Hudson enjoyed the same accolades, they did not star in any films together. Hepburn’s costars included other big names like Cary Grant, Sidney Poitier, and Anthony Hopkins.
Rock Hudson shared the big screen with an impressive handful of stars, including Doris Day, Jane Wyman, Claudia Cardinale, and his close off-screen friend Elizabeth Taylor. Cardinale stated that Hudson had a strong impact on her. But when asked in an interview about the woman who impacted him the most, Hudson chose Hepburn.