<P> Tabitha Stephens (Erin Murphy) (spelled Tabatha in production credits until season 5) is the daughter of Samantha and Darrin . She is born in season 2 . She has supernatural powers . Tabitha Stephens' birth in the season 2 episode "And Then There Were Three" featured infant Cynthia Black in the role . For the remainder of the season, Tabitha was played by twins Heidi and Laura Gentry, followed by twins Tamar and Julie Young . Fraternal twin toddlers Diane Murphy and Erin Murphy were cast for the role at the beginning of season 3 . In time, they began to look less alike, so Diane was dropped during season 4 . Diane made several guest appearances in other roles, and filled in as Tabitha one last time in season 5's "Samantha Fights City Hall", because Erin had the mumps . Tabitha was played by Liberty Williams in the 1976 pilot and by Lisa Hartman in the 1977 series of the same name . </P> <P> Adam Stephens (David Lawrence) is the son of Samantha and Darrin . Like his sister and his mother, he has supernatural powers . In the Tabitha TV show pilot, he is played by Bruce Kimmel and he also possessed warlock powers and a mischievous nature, but in the series itself, he was played by David Ankrum, and was often the disapproving mortal figure of the family, much like their father, Darrin was . Despite his entreaties to his sister to not use her powers, and his dismay when their Aunt Minerva (Karen Morrow) encouraged her to use them, he really does love his sister very much . A continuity error switched the birth order of Tabitha and Adam (in Bewitched, Tabitha is older and Adam is younger; in Tabitha, Adam is older and Tabitha is younger). </P> <P> Serena (Elizabeth Montgomery) is Samantha's cousin on Maurice's side . Serena is egocentric and looks like Samantha (except for a tattoo under her left eye). Also played by Montgomery, Serena is credited as "Pandora Spocks" (a spin on the phrase "Pandora's box") in many of her appearances from 1969 to 1971 . Serena is first seen in episode, #54, "And Then There Were Three". Serena is the antithesis of Samantha, in most episodes sporting a beauty mark on her cheek, raven - black cropped hair and mod mini-skirts . Ever mischievous, bawdy and irresponsible, Serena often flirts with Larry Tate (calling the white - haired Tate "Cotton - Top"), just for sport . She occasionally dates mortals, and has been known to flirt with Darrin, while pretending to be Samantha . Despite her conduct and frequent co-plotting with Endora, Serena has been known to assist Samantha and Darrin, although she finds them "both a bit square". </P> <P> Uncle Arthur (Paul Lynde), Endora's prank - loving brother, makes several appearances . Despite many practical jokes at Darrin's expense, Uncle Arthur has a less antagonistic relationship with him than Endora . In one episode, both Serena and Uncle Arthur go head - to - head with the Witches Council to support the Stephens' union, only to have their own powers suspended . Samantha is clearly very fond of her uncle, and vice versa . </P>

What was samantha's cousin's name on bewitched