Before they were Bradys IILast year, I posted about the Brady kids 'before they were Bradys'. I didn't think I'd be able to find more footage but it turns out the young Maureen McCormick, in particular, appeared in quite a few popular shows before she became Marcia. She even appeared in Bewitched TWICE.
Skip to about 4:55:
The next year, Maureen scored a bigger part - playing a junior version of Endora herself. Endora (the senior version) is angry with Darrin for insisting Samantha spends Halloween entertaining at home, rather than go out with her. She turns herself into a trick or treating child and gets back at Darrin by turning him slowly into a werewolf.
Skip to 8:30:
I'll be back with more...