I do agree that her best film role was as Mrs. Voorhees in the Friday the 13th franchise. Mrs. Voorhees was just as popular as her son Jason. With how big the franchise was and how popular it is still to this day, I would say it was undoubtedly her best role of her film career.
Betsy Palmer is a known actress, and especially when it comes to her role of playing the mother of crazed killer, Jason Voorhees, in the "Friday the 13th" franchise. Palmer's part in these movies is an emotional, unstable, and fearful character. Because of this, I really do think that it may have been her best role yet.
Although Betsy Palmer was has been in many TV shows and feature films throughout her career. Although Friday The 13TH fans may remember her as Jason's mother, Mrs. Voorhees, Betsy did not really enjoy doing the role and said she had only taken because she needed a new car at the time. The Terror Film Festival awarded Ms. Palmer the Best Actress Award in 2006, for her role in the movie Penny Dreadful.
The very talented character actor Betsy Palmer skyrocketed to fame and instant recognition from her role as the mother to the murderous Michael Vorhees in the Friday the 13th series of films. Betsy Palmer played the role with gusto and she is best known for it, but it was not her best role in her long storied acting career.