Errand of Mercy

26th episode of the 1st season of Star Trek: The Original Series

Summary

"Errand of Mercy" is the twenty-sixth episode of the first season of the American science fiction television series Star Trek. Written by Gene L. Coon and directed by John Newland, it was first broadcast on March 23, 1967. It was the first episode in which the Klingons appeared.

Originally created by Morwen

12/24/2003, 4:30:48 PM

Modified

1/11/2026, 7:55:33 PM

Recent revisions

LuniZunie1/11/2026, 7:55:33 PM

Remove links to a site per [[Wikipedia:AutoWikiBrowser/Tasks#Removing a URL from external links sections per WP:ELNEVER]] (via [[WP:JWB]])

/* Production */ and added a link for the citadel page as well

/* Production */ oops, missed the unnecessary "a" at the end

/* Production */ Unnecessary redundant wording removed

CuriousEric10/15/2025, 8:22:03 PM

/* top */use spaced en dash {{snd}} in Guest appearances list

Not10118/22/2025, 4:16:01 AM

/* In popular culture */

74.72.193.2138/20/2025, 2:55:17 AM

/* Production */

SirOlgen7/27/2025, 6:49:54 PM

/* Reception */ adjust author parameter to match format of first/last parameter pair in citation

SirOlgen7/26/2025, 4:44:59 AM

/* Reception */ [[WP:LINT|LINT]] duplicate cite ID fix - merge first/last citation parameters into author to avoid duplicate CITEREFBlauvelt2013 reference ID's

Removed misplaced comma.

Panamitsu1/3/2025, 8:08:05 AM

add {{Use American English}} template

Ser Amantio di Nicolao1/1/2025, 9:16:08 PM

/* top */ add {{Use mdy dates|date=January 2025}}

JohnnyToxxxic12/6/2024, 8:46:21 PM

/* Production */

GreenC bot11/13/2024, 8:55:35 PM

Move 1 url. [[User:GreenC/WaybackMedic_2.5|Wayback Medic 2.5]] per [[WP:URLREQ#avclub.com/articles]]

Jimcastor8/4/2024, 2:47:27 AM

/* External links */

BD24123/31/2024, 12:30:33 AM

clean up following page moves, replaced: (season 1) → season 1 (3)

Cleanup

/* In Popular Culture */

InternetArchiveBot9/7/2023, 10:32:06 PM

Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.9.5) ([[User:Whoop whoop pull up|Whoop whoop pull up]] - 14897

I. R. Finch8/26/2023, 12:09:18 AM

added link for James Doohan

Contributors

Source: WikipediaView full article