Former C.o.S. Priest Michael A. Aquino with C.o.S. member Sammy Davis Jr and C.o.S. founder and Magus Anton LaVey.
In 1973 Sammy Davis Jr. officially joined the Church of Satan after having met Mr. LaVey and Michael Aquino at various parties and functions. He later converted to Judaism which required him to leave the C.o.S. for good, although he stayed friends with Anton LaVey and various other members.