
Personal Info
Known For
Acting
Born
January 25, 1937
Died
January 4, 2021 (age 83)
Place of Birth
New York City, New York, USA
Also Known As
Gregg Sierra
Dirk Peno
Gregory Joseph Sierra
Greg Sierra
Gregory Sierra
Biography
Known For

The Waltons
Volta
1972

The X-Files
Dr. Diamond
1993

Columbo
Lou D'Allessandro
1971

Murder, She Wrote
Sanchez
1984

Murder, She Wrote
Ramon
1984

Murder, She Wrote
Moreno
1984

Murder, She Wrote
Lieutenant Gabriel Caceras
1984

Star Trek: Deep Space Nine
Entek
1993

Miami Vice
Lt. Lou Rodriguez
1984

Magnum, P.I.
Miguel Torres
1980

MacGyver
Colonel Antunnez
1985

MacGyver
General Antonio Vasquez
1985

MacGyver
Captain Diaz
1985

Falcon Crest
FBI-Agent Taylor
1981

Dr. Quinn, Medicine Woman
Gen. Eli Parker
1993

Mission: Impossible
Fernando Laroca
1966

Mission: Impossible
Gomal
1966

Mission: Impossible
Prado's butler
1966

Ironside
Billy Trona
1967

Barney Miller
Miguel Amenguale
1975