Star Trek backdrop
Star Trek S1E9 — Dagger of the Mind
7.4
Star Trek•Season 1•Episode 9

Dagger of the Mind

7.4/10 · 5,193 votesNov 3, 196650 min

Ranked #19 of 29 in Season 1•−0.2 vs season avg

Discussion

When a wild eyed maniac escaping from the Tantalus Penal Colony turns out to be one of the psychiatric staff, Kirk investigates the institution and discovers a chilling exercise in mind control.

Directed byVincent McEveety
Written byShimon Wincelberg
Previous episodeE8 · MiriNext episodeE10 · The Corbomite Maneuver
BestEpisodes
WorstEpisodes
BestSeasons
AllEpisodes

Seasons3

All123

Season 1 Episodes29

The Man Trap stillE1 7.2

The Man Trap

Charlie X stillE2 7.0

Charlie X

Where No Man Has Gone Before stillE3 7.7

Where No Man Has Gone Before

The Naked Time stillE4 7.8

The Naked Time

The Enemy Within stillE5 7.6

The Enemy Within

Mudd's Women stillE6 6.7

Mudd's Women

What Are Little Girls Made Of? stillE7 7.5

What Are Little Girls Made Of?

Miri stillE8 6.9

Miri

Dagger of the Mind stillE9 7.4Now viewing

Dagger of the Mind

The Corbomite Maneuver stillE10 8.0

The Corbomite Maneuver

The Menagerie (1) stillE11 8.2

The Menagerie (1)

The Menagerie (2) stillE12 8.1

The Menagerie (2)

The Conscience of the King stillE13 7.1

The Conscience of the King

Balance of Terror stillE14 8.8

Balance of Terror

Shore Leave stillE15 7.3

Shore Leave

The Galileo Seven stillE16 7.6

The Galileo Seven

The Squire of Gothos stillE17 7.2

The Squire of Gothos

Arena stillE18 7.9

Arena

Tomorrow Is Yesterday stillE19 7.9

Tomorrow Is Yesterday

Court Martial stillE20 7.4

Court Martial

The Return of the Archons stillE21 7.1

The Return of the Archons

Space Seed stillE22 8.7

Space Seed

A Taste of Armageddon stillE23 8.0

A Taste of Armageddon

This Side of Paradise stillE24 7.8

This Side of Paradise

The Devil in the Dark stillE25 8.3

The Devil in the Dark

Errand of Mercy stillE26 8.1

Errand of Mercy

The Alternative Factor stillE27 5.7

The Alternative Factor

The City on the Edge of Forever stillE28 9.2

The City on the Edge of Forever

Operation: Annihilate! stillE29 7.5

Operation: Annihilate!

Cast6

William Shatner

William Shatner

James T. Kirk

Leonard Nimoy

Leonard Nimoy

Spock

DeForest Kelley

DeForest Kelley

Dr. McCoy

James Doohan

James Doohan

Scott

George Takei

George Takei

Sulu

Nichelle Nichols

Nichelle Nichols

Uhura

Crew12

Vincent McEveety

Vincent McEveety

Director

S

Shimon Wincelberg

Writer

G

Gerald Perry Finnerman

Director of Photography

B

Bruce Schoengarth

Editor

W

Walter M. Jefferies

Art Direction

R

Rolland M. Brooks

Art Direction

W

William Ware Theiss

Costume Design

Alexander Courage

Alexander Courage

Music

J

Jim Rugg

Special Effects

F

Fred B. Phillips

Makeup Artist

V

Virginia Darcy

Hairstylist

I

Irving A. Feinberg

Property Master

Discussion

0 comments

Join the conversation

Share your take and reply to other fans.

No comments yet

Be the first to share your thoughts on this episode.

Episode Summary

"Dagger of the Mind" is episode 9 of Star Trek season 1. It scored 7.4/10 from 5,193 votes, ranking #19 of 29 episodes this season (season average 7.6). Directed by Vincent McEveety and written by Shimon Wincelberg, it aired on November 3, 1966.

Next: E10 · The Corbomite ManeuverBest of Season 1