John G. Hertzler was born in Port Royal (Pennsylvania). Since his father was in the Air Force, he often moved as a child. Among other things his family lived in Texas, Casablanca, Omaha, and Maryland. First John was successful some years as a football player, and after high school he played for Bucknell University (left defensive end / outside more linebacker), before he turned to theater.

I (DrMM) have started calling him, "The Man of Many Stage Names" because he's also been credited as Garman Hertzler, J.G. Hertzler, John G. Hertzler, John Garman Hertzler and John Noah Hertzler. Also notable as Martok on Star Trek: Deep Space Nine, the only Klingon I've ever actually liked. :)

2.Prophecy II, The (1998) (as J.G. Hertzler) .... Father William

3.Treasure Island: The Adventure Begins (1994) (TV) .... Black Dog

4.Star Trek: Deep Space Nine - Emissary (1993) (TV) (as John Noah Hertzler) .... Vulcan Captain ... aka Emissary (1993) (TV)

5."Zorro" (1990) TV Series .... Alcalde Ignacio de Soto (Seasons 3-4)

6."General Hospital" (1963) TV Series .... General Stark (1990)

7.Cry for Help: The Tracey Thurman Story, A (1989) (TV) .... Doctor

8....And Justice for All (1979) .... The Other Driver

9.Redeemer: Son of Satan!, The (1976) ... aka Class Reunion Massacre (1976) (video title)

Filmography as: Actor, Notable TV guest appearances

2."Star Trek: Deep Space Nine" (1993) playing "General Martok" in episode: "Shadows and Symbols" (episode # 7.2) 10/3/1998

3."Star Trek: Deep Space Nine" (1993) playing "General Martok" in episode: "Image in the Sand" (episode # 7.1) 9/26/1998

4."Star Trek: Deep Space Nine" (1993) playing "Roy" in episode: "Far Beyond the Stars" (episode # 6.13) 2/7/1998

5."Star Trek: Deep Space Nine" (1993) playing "General Martok" in episode: "Far Beyond the Stars" (episode # 6.13) 2/7/1998

6."Star Trek: Deep Space Nine" (1993) playing "General Martok" in episode: "You Are Cordially Invited... (a.k.a. Once Upon A Wedding)" (episode # 6.7) 11/8/1997

7."Star Trek: Deep Space Nine" (1993) playing "General Martok" in episode: "Sacrifice of Angels, The (Part 2)" (episode # 6.6) 11/1/1997

8."Star Trek: Deep Space Nine" (1993) playing "General Martok" in episode: "Favor the Bold (Part 1)" (episode # 6.5) 10/25/1997

9."Star Trek: Deep Space Nine" (1993) playing "General Martok" in episode: "Sons and Daughters" (episode # 6.3) 10/13/1997

10."Star Trek: Deep Space Nine" (1993) playing "General Martok" in episode: "Time To Stand, A" (episode # 6.1) 9/27/1997

11."Star Trek: Deep Space Nine" (1993) playing "General Martok" in episode: "Call To Arms, A" (episode # 5.26) 6/14/1997

12."Star Trek: Deep Space Nine" (1993) playing "General Martok" in episode: "Blaze of Glory" (episode # 5.23) 5/10/1997

13."Star Trek: Deep Space Nine" (1993) playing "General Martok" in episode: "Soldiers of the Empire" (episode # 5.21) 4/26/1997

14."Star Trek: Deep Space Nine" (1993) playing "General Martok" in episode: "By Inferno's Light" (episode # 5.15) 2/15/1997

15."Star Trek: Deep Space Nine" (1993) playing "General Martok" in episode: "Apocalypse Rising" (episode # 5.1) 9/30/1996

16."Lois & Clark: The New Adventures of Superman" (1993) playing "Trey" in episode: "Lord Of The Flys" (episode # 4.1) 9/22/1996

17."Star Trek: Deep Space Nine" (1993) playing "General Martok" in episode: "Way of The Warrior: Part 1" (episode # 4.1) 9/30/1995

18."Diagnosis Murder" (1993) playing "Mr. Smith" in episode: "Sister Michael Wants You" (episode # 1.19) 5/13/1994

19."Adventures of Brisco County Jr., The" (1993) playing "Edward Hayes/Myron Stempler"(as J.G. Hertzler) in episode: "Bounty Hunters' Convention" (episode # 1.16) 1/7/1994

20."Highlander" (1992) playing "Marcus Korolus" in episode: "See No Evil" (episode # 1.11) 2/1/1993

21."Ultraman: The Ultimate Hero" (1993) in episode: "Tails From The Crypts (Aboras & Banilla)" (episode # 7)

22."Quantum Leap" (1989) in episode: "Sea Bride" (episode # 2.21) 5/2/1990

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Bio information is from the Galileo 7 Star Trek Convention webpage (in German), and credits are from the Internet Movie Database.