The attached YouTube video may not be entirely pertinent to this thread... and I post it for perhaps as interest to some, and amusement purposes.
The young lecturer in the video resembles the young Chris Butler, in my opinion! The mouth, the teeth, the face maybe... but mostly in his speech inflections, his movements, his confidence and charisma, and his style of lecturing ad lib without note
Forum:
"Cults," Sects, and "New Religious Movements"