Betsy Palmer ( November 1 , 1926 -- May 29 , 2015 ) was an American actress , known as a regular panelist on the game show `` I 've Got a Secret '' , and later for playing Pamela Voorhees in the slasher film `` Friday the 13th . ''
Betsy Palmer ( born Patricia Betsy Hrunek ; November 1 , 1926 -- May 29 , 2015 ) was an American actress , best known as a regular panelist on the game show `` I 've Got a Secret '' , and later for playing Pamela Voorhees in the slasher movie `` Friday the 13th '' .