William Shatner as Captain James T. Kirk, Leonard Nimoy as Mr. Spock, and DeForest Kelley as Dr. Leonard ‘Bones’ McCoy lead the original ‘Star Trek‘.
Main cast
- Captain James T. KirkWilliam Shatner1–3Main
- Mr. SpockLeonard Nimoy1–3Main
- Dr. Leonard ‘Bones’ McCoyDeForest Kelley1–3Main
- Montgomery ‘Scotty’ ScottJames Doohan1–3Main
- Nyota UhuraNichelle Nichols1–3Main
- Hikaru SuluGeorge Takei1–3Main
- Pavel ChekovWalter Koenig2–3Main
Supporting cast
- Christine ChapelMajel Barrett1–3Supp
- Janice RandGrace Lee Whitney1–2Supp
Guest & voice
- Khan Noonien SinghRicardo Montalbán1Guest
- Commodore MendezJohn Colicos1Guest
- Gary MitchellGary Lockwood1Guest
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About this cast
The original ‘Star Trek’ (1966–1969) follows the crew of the USS Enterprise on a five-year mission of exploration. The primary cast includes William Shatner as Captain Kirk, Leonard Nimoy as the half-Vulcan science officer Spock, and DeForest Kelley as the ship’s doctor, Leonard McCoy.
FAQs
Who plays Captain Kirk in Star Trek?
William Shatner plays Captain James T. Kirk in the original 1966–1969 TV series.
Who plays Mr. Spock?
Leonard Nimoy plays Mr. Spock in the original series.
Who plays Dr. McCoy?
DeForest Kelley plays Dr. Leonard ‘Bones’ McCoy.
When was the original Star Trek TV series made?
The original series aired from 1966 to 1969 on NBC.
How many seasons of the original Star Trek are there?
The original series has three seasons.
Sources & where to watch: IMDb · Wikipedia · Where to watch (JustWatch UK) · Updated June 2026