Here's a good 30-minute radio interview with Agnes Moorehead from 1971. It's the first time I've heard here in her own voice, and judging from it, the character of Endora was not all that much of a stretch for her. Welles and the Mercury Theatre are mentioned several times:
AGNES MOOREHEAD RADIO INTERVIEW:
http://www.speakingofradio.com/intervie ... s-actress/

