7.7
/10
Dr. McCoy is a fictional character portrayed by DeForest Kelley in the TV series Star Trek.
In the first episode they appeared in, titled The Man Trap (season 1), they were 46 years old.
They appear in 76 episodes out of a total of 79 aired and have accumulated 4614 positive votes.
The character of Dr. McCoy is mainly associated with Captain James Tiberius 'Jim' Kirk, Mister Spock and Scott.

Dr. McCoy

by DeForest Kelley

character

Episodes76

  • 7.2
    /10

    The Man Trap
    episode S1.E1 september 1966
    Dr. McCoy discovers his old flame is not what she seems after crew members begin dying from a sudden lack of salt in their bodies.
  • 7
    /10

    Charlie X
    episode S1.E2 september 1966
    Captain Kirk must learn the limits to the power of a 17-year-old boy with the psionic ability to create anything and destroy anyone.
  • 7.8
    /10

    The Naked Time
    episode S1.E4 september 1966
    The crew is infected with a mysterious disease that removes people's emotional inhibitions to a dangerous degree.
  • 7.6
    /10

    The Enemy Within
    episode S1.E5 october 1966
    A transporter malfunction splits Captain Kirk into two halves: one meek and indecisive, the other violent and ill tempered. The remaining crew members stranded on the planet cannot be beamed up to the ship until a problem is fixed.
  • 6.7
    /10

    Mudd's Women
    episode S1.E6 october 1966
    The Enterprise picks up untrustworthy entrepreneur Harry Mudd accompanied by three beautiful women who immediately put a spell on all the male crew members.
  • 6.9
    /10

    Miri
    episode S1.E8 october 1966
    The Enterprise discovers a planet exactly like Earth, but the only inhabitants are children who contract a fatal disease upon entering puberty.
  • 7.4
    /10

    Dagger of the Mind
    episode S1.E9 november 1966
    Kirk and psychiatrist Helen Noel are trapped on a maximum security penal colony that experiments with mind control and Spock must use the Vulcan mind-meld to find a way to save them.
  • 8
    /10

    The Corbomite Maneuver
    episode S1.E10 november 1966
    After the Enterprise is forced to destroy a dangerous marker buoy, a gigantic alien ship arrives to capture and condemn the crew as trespassers.
  • 8.2
    /10

    The Menagerie: Part I
    episode S1.E11 november 1966
    Spock kidnaps the disabled Capt. Pike, hijacks the Enterprise, and then surrenders for court martial.
  • 8.1
    /10

    The Menagerie: Part II
    episode S1.E12 november 1966
    At Spock's court martial, he explains himself with mysterious footage about when Capt. Pike was kidnapped by powerful illusion casting aliens.
  • 7.1
    /10

    The Conscience of the King
    episode S1.E13 december 1966
    While Captain Kirk investigates whether an actor is actually a presumed dead mass murderer, a mysterious assailant is killing the people who could identify the fugitive.
  • 8.8
    /10

    Balance of Terror
    episode S1.E14 december 1966
    The Enterprise must decide on its response when a Romulan ship makes a destructively hostile armed probe of Federation territory.
  • 7.4
    /10

    Shore Leave
    episode S1.E15 december 1966
    The past three months have left the crew of the Enterprise exhausted and in desperate need of a break, but does this explain McCoy's encounter with a human-sized white rabbit or Kirk crossing paths with the prankster who plagued his days at Starfleet Academy?
  • 7.6
    /10

    The Galileo Seven
    episode S1.E16 january 1967
    The Galileo, under Spock's command, crash-lands on a hostile planet. As the Enterprise races against time to find the shuttlecraft, Spock's strictly logical leadership clashes with the fear and resentment of his crew.
  • 7.2
    /10

    The Squire of Gothos
    episode S1.E17 january 1967
    A being that controls matter and creates planets wants to play with the Enterprise crew.
  • 7.9
    /10

    Arena
    episode S1.E18 january 1967
    For bringing hostility into their solar system, a superior alien race brings Captain Kirk into mortal combat against the reptilian captain of an alien ship he was pursuing.
  • 7.9
    /10

    Tomorrow Is Yesterday
    episode S1.E19 january 1967
    The Enterprise is thrown back in time to 1960s Earth.
  • 7.4
    /10

    Court Martial
    episode S1.E20 february 1967
    Kirk draws a court martial in the negligent death of a crewman.
  • 7.1
    /10

    The Return of the Archons
    episode S1.E21 february 1967
    Seeking the answer to a century-old mystery, Kirk and crew encounter a vacantly peaceful society under a 6000-year autocratic rule that kills all those it can't absorb.
  • 8.7
    /10

    Space Seed
    episode S1.E22 february 1967
    While on patrol in deep space, Captain Kirk and his crew find and revive a genetically engineered world conqueror and his compatriots from Earth's 20th century.
  • 8
    /10

    A Taste of Armageddon
    episode S1.E23 february 1967
    Kirk and Spock must save their ship's crew when they are declared all killed in action in a bizarre computer-simulated war where the actual deaths must nevertheless occur.
  • 7.8
    /10

    This Side of Paradise
    episode S1.E24 march 1967
    The Enterprise investigates a planet whose colonists should be dead, but are not.
  • 8.3
    /10

    The Devil in the Dark
    episode S1.E25 march 1967
    The Enterprise is sent to a mining colony that is being terrorized by a mysterious monster, only to find that the situation is not that simple.
  • 5.7
    /10

    The Alternative Factor
    episode S1.E27 march 1967
    Existence itself comes under threat from a man's power-struggle with his alternate self, with the Enterprise's strained dilithium crystals presenting his key to a final solution.
  • 9.2
    /10

    The City on the Edge of Forever
    episode S1.E28 april 1967
    When a temporarily insane Dr. McCoy accidentally changes history and destroys his time, Kirk and Spock follow him to prevent the disaster, but the price to do so is high.
  • 7.5
    /10

    Operation -- Annihilate!
    episode S1.E29 april 1967
    The Enterprise crew attempts to stop a plague of amoeba-like creatures from possessing human hosts and spreading throughout the galaxy.
  • 8.6
    /10

    Amok Time
    episode S2.E1 september 1967
    In the throes of his Pon Farr mating period, Spock must return to Vulcan to meet his intended future wife, betrothed from childhood.
  • 7.1
    /10

    Who Mourns for Adonais?
    episode S2.E2 september 1967
    A powerful being claiming to be the Greek god Apollo appears and demands that the crew of the Enterprise disembark onto his planet to worship him.
  • 7.6
    /10

    The Changeling
    episode S2.E3 september 1967
    A powerful artificially intelligent Earth probe, with a murderously twisted imperative, comes aboard the Enterprise and mistakes Capt. Kirk for its creator.
  • 9
    /10

    Mirror, Mirror
    episode S2.E4 october 1967
    A transporter accident places Captain Kirk's landing party in an alternate universe, where the Enterprise is in the service of a barbarically brutal empire.
  • 6.4
    /10

    The Apple
    episode S2.E5 october 1967
    Primitive inhabitants of Gamma Trianguli VI worship a god who orders them to kill visitors from the Enterprise.
  • 8.7
    /10

    The Doomsday Machine
    episode S2.E6 october 1967
    The USS Enterprise encounters the wrecked USS Constellation and its distraught commodore who's determined to stop the giant planet-destroying robot ship that killed his crew.
  • 6.2
    /10

    Catspaw
    episode S2.E7 october 1967
    Very alien visitors to our galaxy attempt to connect with human consciousness but miss, winding up tapping into the regions of human nightmares instead.
  • 7.3
    /10

    I, Mudd
    episode S2.E8 november 1967
    Harry Mudd returns with a plot to take over the Enterprise by stranding the crew on a planet populated by androids under his command.
  • 7.2
    /10

    Metamorphosis
    episode S2.E9 november 1967
    While returning to the Enterprise aboard the shuttlecraft, Kirk, Spock, McCoy and a seriously ill Federation diplomat find themselves kidnapped by an energized cloud.
  • 8.5
    /10

    Journey to Babel
    episode S2.E10 november 1967
    The Enterprise hosts a number of quarrelling diplomats, including Spock's father, but someone on board has murder in mind.
  • 6.7
    /10

    Friday's Child
    episode S2.E11 december 1967
    The Federation clashes with the Klingon Empire over mining rights to Capella IV. A sudden coup between its warrior-minded inhabitants forces Kirk's party to flee with the now dead leader's pregnant wife.
  • 7.3
    /10

    The Deadly Years
    episode S2.E12 december 1967
    A landing party from the Enterprise is exposed to strange form of radiation which rapidly ages them.
  • 7.2
    /10

    Obsession
    episode S2.E13 december 1967
    Capt. Kirk obsessively hunts for a mysterious cloud creature he encountered in his youth.
  • 7.2
    /10

    Wolf in the Fold
    episode S2.E14 december 1967
    Kirk and the Enterprise computer become detectives after Scotty is accused of murdering women on a pleasure planet.
  • 8.8
    /10

    The Trouble with Tribbles
    episode S2.E15 december 1967
    To protect a space station with a vital grain shipment, Kirk must deal with Federation bureaucrats, a Klingon battle cruiser and a peddler who sells furry, purring, hungry little creatures as pets.
  • 7
    /10

    The Gamesters of Triskelion
    episode S2.E16 january 1968
    Kirk, Uhura and Chekov are trapped on a planet where abducted aliens are enslaved and trained to perform as gladiators for the amusement of bored, faceless aliens.
  • 7.7
    /10

    A Piece of the Action
    episode S2.E17 january 1968
    The crew of the Enterprise struggles to cope with a planet of imitative people who have modeled their society on 1920s gangsters.
  • 7.5
    /10

    The Immunity Syndrome
    episode S2.E18 january 1968
    The Enterprise encounters a gigantic energy draining space organism that threatens the galaxy.
  • 6.8
    /10

    A Private Little War
    episode S2.E19 february 1968
    Peaceful, primitive peoples get caught up in the struggle between superpowers, with Kirk unhappily trying to restore the balance of power disrupted by the Klingons.
  • 7.4
    /10

    Return to Tomorrow
    episode S2.E20 february 1968
    The Enterprise is guided to a distant, long-dead world where survivors of an extremely ancient race - existing only as disembodied energy - desiring the bodies of Kirk, Spock and astro-biologist Ann Mulhall so that they may live again.
  • 7.5
    /10

    Patterns of Force
    episode S2.E21 february 1968
    Looking for a missing Federation cultural observer, Kirk and Spock find themselves on a planet whose culture has been completely patterned after Nazi Germany.
  • 7.5
    /10

    By Any Other Name
    episode S2.E22 february 1968
    Galactic alien scouts capture the Enterprise for a return voyage and a prelude to invasion. Kirk's one advantage - they're not used to their adopted human form.
  • 6.1
    /10

    The Omega Glory
    episode S2.E23 march 1968
    Responding to a distress signal, Kirk finds Captain Tracey of the U.S.S. Exeter violating the prime directive and interfering with a war between the Yangs and the Kohms to find the secret of their longevity.
  • 8
    /10

    The Ultimate Computer
    episode S2.E24 march 1968
    Kirk and a sub-skeleton crew are ordered to test out an advanced artificially intelligent control system - the M-5 Multitronic system, which could potentially render them all redundant.
  • 7
    /10

    Bread and Circuses
    episode S2.E25 march 1968
    The Enterprise crew investigates the disappearance of a ship's crew on a planet that is a modern version of the Roman Empire.
  • 7.5
    /10

    Assignment: Earth
    episode S2.E26 march 1968
    While back in time observing Earth in 1968, the Enterprise crew encounters the mysterious Gary Seven who has his own agenda on the planet.
  • 5.6
    /10

    Spock's Brain
    episode S3.E1 september 1968
    The crew of the Enterprise pursues a mysterious woman who has abducted Spock's brain.
  • 8.4
    /10

    The Enterprise Incident
    episode S3.E2 september 1968
    An apparently insane Capt. Kirk has the Enterprise deliberately enter the Romulan Neutral Zone where the ship is immediately captured by the enemy.
  • 6.7
    /10

    The Paradise Syndrome
    episode S3.E3 october 1968
    Trapped on a planet whose inhabitants are descended from Northwestern Native Americans, Kirk loses his memory and is proclaimed a God while the crippled Enterprise races back to the planet before it is destroyed by an asteroid.
  • 5.2
    /10

    And the Children Shall Lead
    episode S3.E4 october 1968
    The Enterprise reaches a Federation colony where the adults have all killed themselves but the children play without care.
  • 6.9
    /10

    Is There in Truth No Beauty?
    episode S3.E5 october 1968
    Lovely telepath Miranda is aide to Ambassador Kollos, in a box to stop insanity when humans see Medusans. She rejects Larry, a designer of Enterprise, and senses murderous intent nearby.
  • 7.2
    /10

    Spectre of the Gun
    episode S3.E6 october 1968
    As punishment for ignoring their warning and trespassing on their planet, the Melkot condemn Capt. Kirk and his landing party to the losing side of a surreal recreation of the 1881 historic gunfight at the OK Corral.
  • 7.7
    /10

    Day of the Dove
    episode S3.E7 november 1968
    Both humans and Klingons have been lured to a planet by a formless entity that feeds on hatred and has set about to fashion them into a permanent food supply for itself.
  • 7.1
    /10

    For the World Is Hollow and I Have Touched the Sky
    episode S3.E8 november 1968
    The Enterprise discovers an apparent asteroid that is on a collision course with a planet is actually an ancient populated generation ship.
  • 8
    /10

    The Tholian Web
    episode S3.E9 november 1968
    With Capt. Kirk and the derelict USS Defiant apparently lost, the Enterprise grapples with an insanity causing plague and an attack by the Tholians.
  • 6.5
    /10

    Plato's Stepchildren
    episode S3.E10 november 1968
    After Dr. McCoy helps the leader of a planet populated by people with powerful psionic abilities, they decide to force him to stay by torturing his comrades until he submits.
  • 7.3
    /10

    Wink of an Eye
    episode S3.E11 november 1968
    A group of aliens who exist in a state of incredible acceleration invade the Enterprise and abduct Capt. Kirk.
  • 6.5
    /10

    The Empath
    episode S3.E12 december 1968
    Trapped in an alien laboratory, Kirk, Spock and McCoy meet an empath and are involved in a series of experiments.
  • 7
    /10

    Elaan of Troyius
    episode S3.E13 december 1968
    While transporting an arrogant, demanding princess for a political marriage, Captain Kirk must cope both with her biochemical ability to force him to love her, as well as sabotage on his ship.
  • 6.9
    /10

    Whom Gods Destroy
    episode S3.E14 january 1969
    Kirk and Spock are taken prisoners by a former starship captain named Garth, who now resides at, and has taken over, a high security asylum for the criminally insane.
  • 7.1
    /10

    Let That Be Your Last Battlefield
    episode S3.E15 january 1969
    The Enterprise encounters two duo-chromatic and mutually belligerent aliens who put the ship in the middle of their old conflict.
  • 6.5
    /10

    The Mark of Gideon
    episode S3.E16 january 1969
    Kirk beams down to the planet Gideon and appears to find himself trapped on a deserted Enterprise. Spock on the real Enterprise must use his diplomatic skills to deal with the uncooperative inhabitants of Gideon and find the Captain.
  • 6.5
    /10

    That Which Survives
    episode S3.E17 january 1969
    After the Enterprise landing party beams down to investigate a geologically interesting planet, their ship is hurled across the galaxy. Kirk and company find a deserted outpost guarded by the deadly image of a beautiful woman.
  • 6.2
    /10

    The Lights of Zetar
    episode S3.E18 january 1969
    A mysterious, twinkling mass of sapient energy ravages an important archive and Scotty's new girlfriend may be linked to it.
  • 7.3
    /10

    Requiem for Methuselah
    episode S3.E19 february 1969
    On a planet, looking for an urgent medicinal cure, Kirk, Spock and McCoy come across a dignified recluse living privately but in splendor with his sheltered ward and a very protective robot servant.
  • 5.4
    /10

    The Way to Eden
    episode S3.E20 february 1969
    A group of idealistic hippies, led by an irrational leader, come aboard the U.S.S. Enterprise.
  • 7
    /10

    The Cloud Minders
    episode S3.E21 february 1969
    Kirk and Spock are caught up in a revolution on a planet where intellectuals and artists live on a utopian city in the sky while the rest of the population toils in mines on the barren surface below.
  • 6.6
    /10

    The Savage Curtain
    episode S3.E22 march 1969
    Kirk, Spock, Abraham Lincoln and Vulcan legend Surak are pitted in battle against notorious villains from history for the purpose of helping a conscious rock creature's understanding of a concept he does not understand, "good vs. evil".
  • 8.1
    /10

    All Our Yesterdays
    episode S3.E23 march 1969
    When Kirk, Spock and McCoy investigate the disappearance of a doomed planet's population, they find themselves trapped in different periods of that world's past.
  • 6.8
    /10

    Turnabout Intruder
    episode S3.E24 june 1969
    Captain Kirk's insane ex-lover Dr. Janice Lester forcibly switches bodies with him in order to take command of the Enterprise.

Best moments10

  • 7.1
    /10
    83% of the votes

    For the World Is Hollow and I Have Touched the Sky
    episode S3.E8 november 1968
    The Enterprise discovers an apparent asteroid that is on a collision course with a planet is actually an ancient populated generation ship.
  • 6.7
    /10
    81% of the votes

    Friday's Child
    episode S2.E11 december 1967
    The Federation clashes with the Klingon Empire over mining rights to Capella IV. A sudden coup between its warrior-minded inhabitants forces Kirk's party to flee with the now dead leader's pregnant wife.
  • 5.6
    /10
    64% of the votes

    Spock's Brain
    episode S3.E1 september 1968
    The crew of the Enterprise pursues a mysterious woman who has abducted Spock's brain.
  • 6.5
    /10
    54% of the votes

    The Empath
    episode S3.E12 december 1968
    Trapped in an alien laboratory, Kirk, Spock and McCoy meet an empath and are involved in a series of experiments.
  • 6.8
    /10
    23% of the votes

    A Private Little War
    episode S2.E19 february 1968
    Peaceful, primitive peoples get caught up in the struggle between superpowers, with Kirk unhappily trying to restore the balance of power disrupted by the Klingons.
  • 7.3
    /10
    22% of the votes

    I, Mudd
    episode S2.E8 november 1967
    Harry Mudd returns with a plot to take over the Enterprise by stranding the crew on a planet populated by androids under his command.
  • 8.5
    /10
    18% of the votes

    Journey to Babel
    episode S2.E10 november 1967
    The Enterprise hosts a number of quarrelling diplomats, including Spock's father, but someone on board has murder in mind.
  • 7.7
    /10
    17% of the votes

    Day of the Dove
    episode S3.E7 november 1968
    Both humans and Klingons have been lured to a planet by a formless entity that feeds on hatred and has set about to fashion them into a permanent food supply for itself.
  • 8.6
    /10
    14% of the votes

    Amok Time
    episode S2.E1 september 1967
    In the throes of his Pon Farr mating period, Spock must return to Vulcan to meet his intended future wife, betrothed from childhood.
  • 7.4
    /10
    14% of the votes

    Return to Tomorrow
    episode S2.E20 february 1968
    The Enterprise is guided to a distant, long-dead world where survivors of an extremely ancient race - existing only as disembodied energy - desiring the bodies of Kirk, Spock and astro-biologist Ann Mulhall so that they may live again.

Votes per episode

season
  • Season 1
  • Season 2
  • Season 3
Season 1
0
E1
0
E2
--
E3
0
E4
0
E5
0
E6
--
E7
0
E8
0
E9
0
E10
0
E11
0
E12
0
E13
0
E14
0
E15
0
E16
0
E17
0
E18
0
E19
0
E20
0
E21
0
E22
0
E23
0
E24
0
E25
--
E26
0
E27
0
E28
0
E29
Season 2
170
E1
8
E2
17
E3
16
E4
27
E5
19
E6
18
E7
211
E8
56
E9
185
E10
791
E11
94
E12
55
E13
26
E14
14
E15
10
E16
19
E17
88
E18
190
E19
118
E20
36
E21
12
E22
22
E23
63
E24
106
E25
9
E26
Season 3
535
E1
8
E2
35
E3
8
E4
26
E5
18
E6
134
E7
670
E8
54
E9
48
E10
25
E11
407
E12
21
E13
11
E14
18
E15
10
E16
11
E17
17
E18
26
E19
9
E20
17
E21
13
E22
87
E23
26
E24