Mary Jane Santa Ana Guck, known professionally as Jaclyn Jose, was a Filipino actress. Known for her penetrating eyes and antagonistic roles in film and soap operas, she was a recipient of various accolades, including five Gawad Urians, two Luna Awards, and a FAMAS Award, in addition to an Asian Film Awards nomination. She is the only Filipino to win the Cannes Film Festival Award for Best Actress for the movie Ma' Rosa (2016). She was also described as the "Queen of Underacting" for her ability to deliver restrained and subtle performances.

Ma' Rosa is a 2016 Filipino drama film directed by Brillante Mendoza. It was selected to compete for the Palme d'Or at the 2016 Cannes Film Festival. At Cannes, Jaclyn Jose won the award for Best Actress. It was selected as the Filipino entry for the Best Foreign Language Film at the 89th Academy Awards but it was not nominated.