"Spock's Brain" was the 62nd episode of Star Trek: The Original Series, and the sixth episode produced in the third and final season of TOS. Shown out of order, this episode was aired as the season premiere of the third season on September 20, 1968. Directed by Marc Daniels, this episode was written by Lee Cronin. A remastered version was released on June 9, 2007.

Contents 1 Summary 2 References 2.1 Characters 2.2 Starships and vehicles 2.3 Locations 2.3.1 Shipboard locations 2.3.2 Stars and systems 2.3.3 Planets and planetoids 2.4 Races and cultures 2.5 States and organizations 2.6 Lifeforms 2.6.1 Anatomy 2.7 Technology and weapons 2.8 Substances and energies 2.9 Ranks and titles 2.10 Other references 2.11 Chronology 3 Appendices 3.1 Images 3.2 Connections 3.3 External link

SummaryEdit

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ReferencesEdit

CharactersEdit

Clifford Brent • Christine Chapel • Pavel Chekov • Hadley • Kara • James T. Kirk • Roger Lemli • Ed Leslie • Luma • Leonard McCoy • Montgomery Scott • Spock • Hikaru Sulu • Nyota Uhura • USS Enterprise (NCC-1701) personnel • unnamed USS Enterprise (NCC-1701) personnel

Starships and vehiclesEdit

Eymorg starship • USS Enterprise (Constitution-class heavy cruiser)

LocationsEdit

Shipboard locationsEdit

bridge • sickbay

Stars and systemsEdit

Sigma Draconis

Planets and planetoidsEdit

Sigma Draconis III • Sigma Draconis IV • Sigma Draconis VI

Referenced only 

Earth

Races and culturesEdit

Human (Roman) • Vulcan • Sigma Draconis VI native (Morg • Eymorg)

States and organizationsEdit

Federation • Starfleet

LifeformsEdit

animal • ape • humanoid • plant

AnatomyEdit

autonomic nervous system • blood • boil • brain (ganglion • medulla oblongata • speech center) • nerve • stomach • vocal cord

Technology and weaponsEdit

biobed • communicator • computer • control bracelet • Controller • elevator • USS Enterprise (NCC-1701) library computer • forge • Great Teacher • hand-held weapon • heating plant • ion drive • ion propulsion • magnetic lock • needle • neural stimulator • nuclear pile • pain band • phaser • phaser pistol • pistol • remote control • sensor • sledgehammer • sonic separator • spaceship • starship • tape • training device • transferal beam • tri-laser connector • transporter • tricorder • turbolift • type-2 phaser • viewscreen • water purifier

Substances and energiesEdit

ice • ion • ion power • ion trail • nitrogen • oxygen • water

Ranks and titlesEdit

captain • chief engineer • chief medical officer • commander • commanding officer • communications officer • doctor • ensign • Federation Starfleet ranks • Federation Starfleet ranks (2260s) • first officer • helmsman • lieutenant • lieutenant commander • manager • mistress • navigator • priestess • science officer • security • tactical officer

Other referencesEdit

alien • anatomy • atrophy • bread • captain's log • captain's log, USS Enterprise (NCC-1701), 2268 • city • class M planet • clothing • communications • deaction shift • energy • evolution • galaxy • glacial age • government • hour • industrial development • industrial scale • landing party • life support • lifeform • log entry • mile • matter • nation-state • orbit • physiology • planet • planetary classification • races and cultures • rank • Richter scale of culture • sapient life • ship's log • ship's log, USS Enterprise (NCC-1701) • space • splinter • standard interstellar symbols • star • star system • Starfleet uniform • Starfleet uniform (2265-2270) • starship design • stellar classification • surgery • technology • temperature • time • title • uniform • universe • volcano • Vulcan physiology • weapon

ChronologyEdit

1485 

Earth's technological and civilizational development in 1485 had an industrial scale rating of "B" and closely matched the development of the inhabitants of Sigma Draconis III in 2268. (episode)

2030 

Earth's technological and civilizational development in 2030 had an industrial scale rating of "G" and closely matched the development of the inhabitants of Sigma Draconis IV in 2268. (episode)

2268 

Enterprise encounters the Eymorg starship. (episode)

24th century 

By the 24th century, many Starfleet officers had come to believe the logs of this event were fabricated and had little-to-no basis in reality. (NF - Prometheans novel: Martyr)

AppendicesEdit

ImagesEdit

ConnectionsEdit

published order
Previous episode: And the Children Shall Lead	TOS episode produced	Next episode: Is There in Truth No Beauty?
Previous episode: Assignment: Earth	TOS episode aired	Next episode: The Enterprise Incident
Previous story: first story	Star Trek 8	Next story: The Enemy Within
chronological order
Previous Adventure: Dreams of the Raven	Pocket	Next Adventure: How Much for Just the Planet?
Previous Adventure: Dreams of the Raven	Voyages of the USS Enterprise (NCC-1701) (2264 to 2270)	Next Adventure: How Much for Just the Planet?

External linkEdit

• Spock's Brain (episode) article at Memory Alpha, the wiki for canon Star Trek.