
J.G. Hertzler
Acting
🎂 1949-03-18
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 began 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.
Cast credits(33)

Council Member
1998

Director
1989

Mr. Smith
1993

Hirogen Hunter
1995

Weathers Farrington
1989

Martok
1993

Vulcan Captain
1993

Martok / Roy Ritterhouse
1993

Laas
1993

Plato
1996

Advocate Kolos
2001

Klingon Captain
2001

Everett Munce
1996

Gallery Owner
2001

Capt. Burgoyne
1993

Marcus Korolus
1992

Trey
1993

Mr. Lafeber
1999

Martok (voice)
2020

Drookmani Captain (voice)
2020

Edward Hayes
1993

Black Dog
1994

Alcalde Ignacio de Soto
1990

Driver
1979

Father William
1998

Ridley Scott
1999

Self
2006

Self
2018

Self
2021

2019

Koval
2007

Martok
1995

Captain Samuel Travis
2014