[post_page_title]Maureen McCormick played two Endoras[/post_page_title]
Yes, Marcia Brady was in Bewitched, not just as one character, but two separate Endoras. She first appears in the show as Samantha and Darrin’s daughter Endora, during a fantasy sequence. She is, of course, named after her maternal grandmother.
Later in the production, she plays the actual Endora who has been transformed into a young child through magic. In a way, though she plays two different characters, she really plays none, since her first character is only a figment, and the second is simply a younger version of another actor!