Fair rating?Star Trek· Season 1 · Episode 27
The Alternative Factor
An alien named Lazarus is somehow responsible for a kind of "winking out" effect - all of reality seems on the verge of collapse. He is fleeing a monster whose intent is nothing less than the destruction of reality. But through a mishap, Kirk is transported to the home of that monster. And he looks exactly like Lazarus! Kirk must decide which of them - if either - is the monster. If he guesses wrong, it's the end of everything.
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#25In Season 1of 29 rated episodes
#63All-timeof 79 rated episodes
−0.5vs season avgSeason 1 averages 7.7
1967First airedMarch 30, 1967
Guest stars
DeForest Kelleyas Dr. Leonard Horatio "Bones" McCoy
Nichelle Nicholsas Lt. Nyota Uhura
Eddie Paskeyas Lt. Leslie
Janet MacLachlanas Lt. Charlene Masters
Arch Whitingas Assistant EngineerChristian Patrickas Transporter Chief
Richard Derras Barstow
Robert Brownas Alternative LazarusRobert Brownas LazarusCrew
Gerd OswaldDirector
Don IngallsWriterShows like Star Trek
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