Full cast of Star Trek

William Shatner

James T. Kirk (voice)

22 episodes

Leonard Nimoy

Spock (voice)

22 episodes

DeForest Kelley

Leonard McCoy (voice)

22 episodes

George Takei

Hikaru Sulu (voice)

22 episodes

Nichelle Nichols

Uhura (voice)

22 episodes

James Doohan

Montgomery Scott (voice)

22 episodes

Majel Barrett

Christine Chapel / Starfleet Computer (voice)

22 episodes

Lou Scheimer

Demos / Dramian Guard (voice) (uncredited) / Lemus / Aquan Harvester (voice) (uncredited) / Romulan Crewman (voice) (uncredited)

3 episodes

David Gerrold

EM / 3 / Green (voice) (uncredited) / Security Ensign (voice) (uncredited)

2 episodes

Norm Prescott

Romulan Commander (voice) (uncredited) / Orion lieutenant / Orion ensign (voice) (uncredited)

2 episodes

Stanley Adams

Cyrano Jones (voice) (uncredited)

1 episode

Roger C. Carmel

Harcourt Fenton Mudd (voice) (uncredited)

1 episode

Ted Knight

Vendorian / Carter Winston (voice) (uncredited)

1 episode

Ed Bishop

Asmodeus (voice) (uncredited)

1 episode

Mark Lenard

Sarek (voice) (uncredited)

1 episode

Billy Simpson

Young Spock (voice) (uncredited)

1 episode

Keith Sutherland

Young Sepek (voice) (uncredited)

1 episode

Jane Webb

Lara / Vedala Female (voice) (uncredited)

1 episode