Frank Silva was a Portuguese American set dresser and sometime actor best known for his disturbing performance as the evil spirit Bob in the TV series "Twin Peaks". Silva had a degree in lighting design from San Francisco State University and worked as a prop master and set decorator on several films including David Lynch’s "Wild at Heart". Silva also worked on Lynch’s "Twin Peaks". Wikipedia
The definitive Wikipedia entry for Frank Silva. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Frank_Silva