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J.G. Hertzler

J.G. Hertzler

Known For Acting
Birthday Mar 18, 1949 (76)
Birthplace None
Popularity 0.2 (history)
Updated Aug 08, 2025
Entry Date Apr 13, 2024
Links TMDb IMDb
Biography

John Garman Hertzler Jr. (born March 18, 1950, in Savannah, Georgia) is an American actor, author, screenwriter, and activist best known for his role as the Klingon General (later Chancellor) Martok on Star Trek: Deep Space Nine, a role he played from 1995 until the series ended in 1999. Hertzler b ... egan his acting career in the 1970s, primarily in stage acting and some films, eventually guest-starring in TV shows before landing a major role in the 1990s series Zorro as Alcalde Ignacio De Soto. Beyond Deep Space Nine, he appeared in several other Star Trek shows, wrote two Star Trek novels, and frequently appeared at science fiction conventions. He grew up mostly around Washington, D.C., attended Bucknell University (earning a degree in political science), pursued a master's in set design at the University of Maryland, and even attended law school briefly. His early career included theater in Washington, New York, San Francisco, and Southern California, with roles spanning Shakespeare and other dramatic works, as well as some film appearances. Hertzler lives in the Finger Lakes region of New York, where he has lectured at Cornell University’s theater department and has been active in local politics and writing screenplays. His filmography includes notable appearances outside of Star Trek, such as Quantum Leap, Zorro, Highlander, and others.

Known For

Filmography

Prelude to Axanar

Prelude to Axanar

2014

as Captain Samuel Travis

Pirates of Silicon Valley

Pirates of Silicon Valley

1999

as Ridley Scott

The Prophecy II

The Prophecy II

1998

as Father William

...And Justice for All

...And Justice for All

1979

as Driver

No data available

No data available

No data available

Organization Category Movie
Television Credits

Zorro

as Alcalde Ignacio de Soto

Episodes: 38

First Aired: Jan 05, 1990

Star Trek: Deep Space Nine

as Martok

Episodes: 26

First Aired: Jan 03, 1993

Six Feet Under

as Gallery Owner

Episodes: 6

First Aired: Jun 03, 2001

Star Trek: Deep Space Nine

as Vulcan Captain

Episodes: 2

First Aired: Jan 03, 1993

Lois & Clark: The New Adventures of Superman

as Trey

Episodes: 2

First Aired: Sep 12, 1993

Star Trek: Lower Decks

as Drookmani Captain (voice)

Episodes: 2

First Aired: Aug 06, 2020

Seinfeld

as Director

Episodes: 1

First Aired: Jul 05, 1989

Star Trek: Enterprise

as Advocate Kolos

Episodes: 1

First Aired: Sep 26, 2001

The Adventures of Brisco County, Jr.

as Edward Hayes

Episodes: 1

First Aired: Aug 27, 1993

Star Trek: Voyager

as Hirogen Hunter

Episodes: 1

First Aired: Jan 16, 1995

Everybody Loves Raymond

as Everett Munce

Episodes: 1

First Aired: Sep 13, 1996

Charmed

as Council Member

Episodes: 1

First Aired: Oct 07, 1998

Quantum Leap

as Weathers Farrington

Episodes: 1

First Aired: Mar 26, 1989

Roswell

as Mr. Lafeber

Episodes: 1

First Aired: Oct 06, 1999

Diagnosis: Murder

as Mr. Smith

Episodes: 1

First Aired: Oct 29, 1993

Star Trek: Enterprise

as Klingon Captain

Episodes: 1

First Aired: Sep 26, 2001

Star Trek: Lower Decks

as Martok (voice)

Episodes: 1

First Aired: Aug 06, 2020

Highlander: The Series

as Marcus Korolus

Episodes: 1

First Aired: Oct 03, 1992

Star Trek: Deep Space Nine

as Martok / Roy Ritterhouse

Episodes: 1

First Aired: Jan 03, 1993

Star Trek: Deep Space Nine

as Laas

Episodes: 1

First Aired: Jan 03, 1993

Sabrina, the Teenage Witch

as Plato

Episodes: 1

First Aired: Sep 27, 1996

Dr. Quinn, Medicine Woman

Episodes: 2

First Aired: Jan 01, 1993

A Captain's Log

as Self

Episodes: 1

First Aired: Jun 30, 2021

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