Betsy Palmer (born Patricia Betsy Hrunek; November 1, 1926 – May 29, 2015) was an American actress, know…Betsy Palmer (born Patricia Betsy Hrunek; November 1, 1926 – May 29, 2015) was an American actress, known as a regular supporting movie and Broadway actress and television guest star, as a panelist on the game show I've Got a Secret, and later for playing Jason Voorhees' mother, Pamela Voorhees, in the popular slasher film Friday the 13th.