Fair rating?Star Trek· Season 2 · Episode 3
The Changeling
A space probe of immense power and sophisticated technology has apparently annihilated the entire Malurian civilization, and now threatens Enterprise. But when Kirk hails it, the attacks cease and it allows itself to come aboard. Soon enough, the reason for its forebearance is revealed: it mistakening believes Kirk is its creator, Jackson Roykirk. This probe is Nomad, launched from Earth long ago. But its technology is far beyond what was understood then; beyond even what the modern Federation is capable of. What happened to Nomad, and why does it destroy whole civilizations?
Streaming on (US) 
See all
#9In Season 2of 26 rated episodes
#15All-timeof 79 rated episodes
+0.2vs season avgSeason 2 averages 7.9
1967First airedSeptember 29, 1967
Guest stars
James Doohanas Lt. Cmdr. Montgomery "Scotty" Scott
Nichelle Nicholsas Lt. Nyota Uhura
George Takeias Lt. Hikaru Sulu
Majel Barrett Roddenberryas Nurse Christine Chapel
Vic Perrinas Nomad (voice)Meade Martinas Crewman
Barbara Gatesas Crewwoman
Makee K. Blaisdellas Lt. Singh
Arnold Lessingas Security Guard
Crew
Marc DanielsDirector
John Meredyth LucasWriter
Shows like Star Trek
The closest matches on shared genres, ranked by match strength and popularity.
- 01Action·Adventure·Science-FictionStargate SG·11997–2008·Syfy
Stargate SG-1 is a science fiction series based on the original film Stargate. - 02Action·Adventure·Science-FictionThe Mandalorian2019–2023·Disney+
After the stories of Jango and Boba Fett, another warrior emerges in the Star Wars universe. - 03Action·Adventure·Science-FictionLanterns2026·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.
- 04Action·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.
- 05Action·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.
- 06Action·Adventure·Science-FictionMonarch: Legacy of Monsters2023
After surviving Godzilla's attack on San Francisco, Cate is shaken yet again by a shocking secret.
