
Acting
Robert A. Silverman is a Canadian actor cast five times by writer/director David Cronenberg. He is sometimes credited as Bob Silverman or Robert Silverman. Wikipedia

The Ruining
as Henry

Jason X
as Dieter Perez

eXistenZ
as D'Arcy Nader

Waterworld
as Hydroholic

Naked Lunch
as Hans

984: Prisoner of the Future
as Prisoner

Scanners
as Benjamin Pierce

Prom Night
as Mr. Sykes

The Brood
as Jan Hartog

One Night Stand
as Nick
The Brood
1979