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

KNOWN FOR

Pacific Blue
1996
Twice in a Lifetime
2000
Friday the 13th: The Series
1988
Waterworld
1995
Jason X
2001
eXistenZ
1999
Naked Lunch
1991
Prom Night
1980
Scanners
1981
The Brood
1979
Teleplay
1977
Rabid
1977

FILMOGRAPHY

All
Movies
TV
Acting
21
2004
The Ruining
as Henry
2001
Jason X
as Dieter Perez
2000
Twice in a Lifetime
as Homeless Man
1999
eXistenZ
as D'Arcy Nader
1996
Pacific Blue
as Gottfried Weber
1995
Waterworld
as Hydroholic
1991
Naked Lunch
as Hans
1989
Friday the 13th: The Series
as Archie Pierce
1988
Friday the 13th: The Series
as Jerry Scott
1982
984: Prisoner of the Future
as Prisoner
1981
Scanners
as Benjamin Pierce
1980
Prom Night
as Mr. Sykes
1979
The Brood
as Jan Hartog
1978
One Night Stand
as Nick
1977
Rabid
as Man in Hospital
1977
Teleplay
1976
Partners
as Hayes
1975
It Seemed Like a Good Idea at the Time
as Lawyer
1974
125 Rooms of Comfort
1965
Winter Kept Us Warm
1964
Sweet Substitute
as Al