Youtube/Classic TV Rewind
Sweet Tabitha was the eldest daughter of the magically gifted witch Samantha, played by Elizabeth Montgomery, and her husband Darrin. Being born to a “special” mom, the little girl showed her witchcraft skills from very early age. Her twitching her tiny nose made many fall in love with her character. Sweet Tabitha had to be taught when not to use her superpowers and it gave her parents hard time.

Youtube/Classic TV Rewind
Today, the sisters who shared the role of Tabitha are 60 years old. They were born on June 17, 1964 in Encino, California. When the girls were born, their mom quit their job as a teacher to take care of them. Their dad, Dan Murphy, owned a business college, Murphy’s College, in Los Angeles.

Diane and Erin are fraternal twins and they don’t look like one another today, but when they were young they were very similar and could play the same role.
Speaking of the time they got to be part of the show, Erin told Fox in 2017, “They had previously shown it in black and white, so the big push of the third season was that the show was going to color and that they were going to focus more on the character of Tabitha. So they were looking for someone who looked like Elizabeth Montgomery and wasn’t afraid of the lights. I auditioned with my fraternal twin sister Diane and we got the part.”