Born in Mannville, Canada, Bay began acting in Winnipeg where she voiced princesses on radio shows. After starting a family she resumed acting in the 1970s.
Viewers will recall Bay's memorable 'Seinfeld' role of Mabel Choate. She fought Jerry over the last loaf of marble rye bread.
Other TV credits include, but aren't limited to: 'The Jeffersons,' 'Dukes of Hazzard,' 'Charmed,' and 'ER.' Bay also played Fonzie's Grandma Nussbaum in 'Happy Days.'
In addition to her numerous TV roles, Bay acted in more than 50 films. The actress became known for appearing in a number of David Lynch projects, including 'Blue Velvet' and 'Twin Peaks.'
The actress' husband died in 2002. The couple's son died at the age of 23 and Bay has no immediate survivors.
Watch her famous 'Seinfeld' scene below.