Born on Nov. 4, 1950, in Palo Alto, Calif., Ms. Post began her career working on game shows, writing questions for “Family Feud,” finding prizes for “The Price Is Right” and doing research for “Split Second.”
“I learned more researching that game show than I did in four years of college,” Ms. Post said in an interview with Bill Tush on his show in the 1980s.
In 1998, Ms. Post was cast by the Farrelly brothers as the ditsy mother of Mary, the main character in “There’s Something About Mary,” who was played by Cameron Diaz.
Later in her career, Ms. Post’s acting credits included “Scrubs” and “Chicago P.D.”
Ms. Post is survived by her husband, Michael A. Ross; and two daughters, Kate Armstrong Ross, an actress, and Daisy Schoenborn, who said in their statement that Ms. Post exemplified kindness.
They described Ms. Post as “a person who made elaborate cakes for friends, sewed curtains for first apartments and showed us how to be kind, loving and forgiving in an often harsh world.”