Fair rating?Stargate SG·1· Season 9 · Episode 10
The Fourth Horseman
After an SGC officer returns to Earth after unknowingly being infected with the Ancient Plague, the virus quickly spreads throughout the United States. Not wanting the Ori to gain control of the Milky Way Galaxy, Orlin yet again descends to help Carter find a cure.
Streaming on (US) 
See all
#8In Season 9of 20 rated episodes
#62All-timeof 213 rated episodes
+0.0vs season avgSeason 9 averages 7.9
2005First airedSeptember 16, 2005
Guest stars
Julian Sandsas Doci
Don S. Davisas Lt. Gen. George Hammond
Gary Jonesas Sgt. Walter Harriman
Tony Amendolaas Master Bra'tac
Bill Dowas Dr. Bill Lee
Lexa Doigas Dr. Carolyn Lam
Louis Gossett, Jr.as Gerak
Cameron Brightas Orlin
Ty Olssonas Col. Barnes
Panouas Lt. Fisher
Simone Baillyas Ka'lel
Gardiner Millaras Yat'yir
Jeff Judgeas AronGreg Andersonas Prior
Crew
Andy MikitaDirector
Damian KindlerWriterShows like Stargate SG·1
The closest matches on shared genres, ranked by match strength and popularity.
- 01Action·Adventure·Science-FictionThe Mandalorian2019–2023·Disney+
After the stories of Jango and Boba Fett, another warrior emerges in the Star Wars universe. - 02Action·Adventure·Science-FictionLanterns2026–present·HBOLanterns follows new recruit John Stewart and Lantern legend Hal Jordan, two intergalactic cops drawn into a dark, Earth-based mystery as they investigate a murder in the American heartland.
- 03Action·Adventure·Science-FictionStar Trek: Strange New Worlds2022–present·Paramount+
Star Trek: Strange New Worlds follows Captain Pike, Science Officer Spock and Number One in the decade before Captain Kirk boarded the U.S.S. - 04Action·Adventure·Science-FictionAhsoka2023–present·Disney+Set after the fall of the Empire, Ahsoka follows the former Jedi knight Ahsoka Tano as she investigates an emerging threat to a vulnerable galaxy.
- 05Action·Adventure·Science-FictionMonarch: Legacy of Monsters2023
After surviving Godzilla's attack on San Francisco, Cate is shaken yet again by a shocking secret. - 06Action·Adventure·Science-FictionThe 1002014–2020·The CWNinety-seven years ago, nuclear Armageddon decimated planet Earth, destroying civilization.
