J.G. Hertzler
J.G. Hertzler is credited on 4 movies and 17 TV shows, best known by TMDB votes for Charmed, Seinfeld and Sabrina, the Teenage Witch.
Born March 18, 1949.
Filmography · 21 titles
US streaming apps shown for the 12 best-known titles, checked October 6, 2026. Tap any title for where it streams and what it costs.
Charmed
1998 · TV show
On Hulu and Peacock
Seinfeld
1989 · TV show
On Netflix
Sabrina, the Teenage Witch
1996 · TV show
On Hulu and Paramount+
Six Feet Under
2001 · TV show
On HBO Max
Star Trek: Voyager
1995 · TV show
On Paramount+
Star Trek: Deep Space Nine
1993 · TV show
On Paramount+
Star Trek: Enterprise
2001 · TV show
On Paramount+
Quantum Leap
1989 · TV show
On Philo
Everybody Loves Raymond
1996 · TV show
On Paramount+ and Prime Video
...And Justice for All
1979 · Movie
On Sony Pictures Core
Pirates of Silicon Valley
1999 · Movie
Not on a US subscription app
Roswell
1999 · TV show
Free with ads on Tubi TV
Dr. Quinn, Medicine Woman
1993 · TV show
Star Trek: Lower Decks
2020 · TV show
Lois & Clark: The New Adventures of Superman
1993 · TV show
Highlander: The Series
1992 · TV show
Zorro
1990 · TV show
The Prophecy II
1998 · Movie
Diagnosis: Murder
1993 · TV show
The Adventures of Brisco County, Jr.
1993 · TV show
InAlienable
2008 · Movie
About J.G. Hertzler
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.
Biography from TMDB, written by its community.