John Garman Hertzler Jr. is an American actor, author, screenwriter, and activist best known for his role on Star Trek: Deep Space Nine as the Klingon General Martok, whom he portrayed from 1995 until the series' end in 1999.
Hertzler (2011)
Hertzler (standing) as Martok, with Robert O'Reilly as Gowron, at the Riverside Trek Fest in 2014
Hertzler and actor James Cromwell show their arrest citations at the Crestwood station protest (June 2016)
Star Trek: Deep Space Nine
Star Trek: Deep Space Nine (DS9) is an American science fiction television series created by Rick Berman and Michael Piller. The fourth series in the Star Trek media franchise, it originally aired in syndication from January 3, 1993, to June 2, 1999, spanning 176 episodes over seven seasons. Set in the 24th century, when Earth is part of a United Federation of Planets, its narrative is centered on the eponymous space station Deep Space Nine, located adjacent to a wormhole connecting Federation territory to the Gamma Quadrant on the far side of the Milky Way galaxy.
Marc Alaimo, Armin Shimerman and Colm Meaney, who portrayed the characters of Gul Dukat, Quark and Miles O'Brien, respectively
Nana Visitor and René Auberjonois, who portrayed the characters of Kira Nerys and Odo, respectively
Chase Masterson (left) portrayed the recurring character Leeta on the series; Nicole De Boer (right) played Ezri Dax, a main character introduced in the seventh season.
Avery Brooks directed several episodes in addition to his lead role of Sisko.