27th episode of the 1st season of Star Trek: The Original Series
"The Alternative Factor"
Star Trek: The Original Series episode
Episode no.
Season 1 Episode 27
Directed by
Gerd Oswald
Written by
Don Ingalls
Featured music
Alexander Courage
Cinematography by
Jerry Finnerman
Production code
020
Original air date
March 30, 1967 (1967-03-30)
Guest appearances
Robert Brown - Lazarus
Janet MacLachlan - Lt. Charlene Masters
Richard Derr - Commodore Barstow
Christian Patrick - Transporter Chief
Arch Whiting - Assistant Engineer
Tom Lupo - Security Guard
Ron Veto - Security Guard
Vince Cadiente - Security Guard
Eddie Paskey - Lt. Lesley
Episode chronology
← Previous "Errand of Mercy"
Next → "The City on the Edge of Forever"
Star Trek: The Original Series season 1
List of episodes
"The Alternative Factor" is the twenty-seventh episode of the first season of the American science fiction television series Star Trek. Written by Don Ingalls and directed by Gerd Oswald, it first aired on March 30, 1967.
In the episode, the crew of the USS Enterprise encounters a "reality jumping" madman. It is the first Star Trek episode to deal with a parallel universe.[1]
^Myers, Eugene; Atkinson, Torie (2009-07-08). "Star Trek Re-watch: "The Alternative Factor"". Tor.com. Archived from the original on 2021-05-09. Retrieved 2022-07-08.
and 22 Related for: The Alternative Factor information
"TheAlternativeFactor" is the twenty-seventh episode of the first season of the American science fiction television series Star Trek. Written by Don...
he was cast in the role of Lazarus in the Star Trek: The Original Series episode TheAlternativeFactor but did not show up on the first day of shooting...
"The AlternativeFactor"". The A.V. Club. Retrieved March 2, 2010. Blauvelt, Christian (2013-05-16). "'Star Trek': The Best of the Klingons from 'The Original...
The impact factor (IF) or journal impact factor (JIF) of an academic journal is a scientometric index calculated by Clarivate that reflects the yearly...
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Alternative for Germany (German: Alternative für Deutschland, AfD; German pronunciation: [aːʔɛfˈdeː] ) is a far-right and right-wing populist political...
of the initial energy stored in the resonator to the energy lost in one radian of the cycle of oscillation. Q factor is alternatively defined as the ratio...
Thealternative pathway is a type of cascade reaction of the complement system and is a component of the innate immune system, a natural defense against...
disappear, then the team cannot produce bread, so the team's bus factor is 5. There is a rare alternative definition for the bus factor, namely: the number of...
Alternative splicing, or alternative RNA splicing, or differential splicing, is an alternative splicing process during gene expression that allows a single...
Robert Brown (both of the Lazaruses in "TheAlternativeFactor"), David Soul (Makora in "The Apple"), and semi-regular Carole Shelyne (the visible representation...
Alternative medicine is any practice that aims to achieve the healing effects of medicine despite lacking biological plausibility, testability, repeatability...
of alternatives may occur throughout the purchase decision. The time and effort devoted to each stage depend on a number of factors including the perceived...
engineering, the power factor of an AC power system is defined as the ratio of the real power absorbed by the load to the apparent power flowing in the circuit...
The Big Five personality traits, sometimes known as "the five-factor model of personality" or "OCEAN model", are a grouping of five unique characteristics...
An alternative investment, also known as an alternative asset or alternative investment fund (AIF), is an investment in any asset class excluding capital...
down-regulate thealternative pathway. Binding of FH permits the bacteria to proliferate in the bloodstream and cause disease. The ability of Factor H to exert...
alternate reality, or alternative dimension, is a hypothetical self-contained layer or plane of existence, co-existing with one's own. While the six terms are...
fixed. Factor regression model is a combinatorial model of factor model and regression model; or alternatively, it can be viewed as the hybrid factor model...
The Bayes factor is a ratio of two competing statistical models represented by their evidence, and is used to quantify the support for one model over the...
phospholipids, forms a complex that converts factor X to the activated form Xa. Thefactor VIII gene produces two alternatively spliced transcripts. Transcript variant...
Alternative country (commonly abbreviated to alt-country; also known as alternative country rock, insurgent country, Americana, or y'allternative) is...