Jill Foster

 portrayed Darrin Stephens' secretary, Betty, although not always by that character name. She appeared in ten episodes (1965-1969).

Biography
Jill Foster was born as Florence Jill Hancock. She was a Canadian actress, known for CBC Summer Theatre (1955), The Unforeseen (1958) and First Performance (1955). She was married to Bewitched story editor and writer Bernard Slade for sixty-four years until her passing.

Bewitched Credits

 * Receptionist in My Boss, the Teddy Bear
 * Secretary in Double Tate
 * Betty in Follow That Witch (Part 2)
 * Secretary in I Remember You...Sometimes
 * Secretary in How to Fail in Business With All Kinds of Help
 * Miss Schaeffer in Cheap, Cheap
 * Secretary in Solid Gold Mother-in-Law
 * Miss Willis in Man of the Year
 * Miss Wilson in Instant Courtesy and One Touch of Midas

Source
Jill Foster on the Internet Movie Database. Retrieved on December 25, 2019.