Jean Adair was a Canadian actress.
Born as Violet McNaughton, she worked primarily on stage but also made several film appearances late in her career, most notably as one of Cary Grant's dotty old aunts in Arsenic and Old Lace, a role she originated on Broadway. Her final performance was as the beloved matriarch Rebecca Nurse in the original production of The Crucible. Like many stage actresses of her era, she also appeared in vaudeville.
She was born in Hamilton, Ontario, Canada and died in New York City, New York, at age 79.