Species: Human
Current Rank: Captain
Ranks Held: Lt. Commander/Commander & Chief Engineer, USS Enterprise; Chief Engineer, USS Enterprise-A
Family: sister, unknown; nephew, Peter Preston
Appearances: TOS: S1 - S3 (regular); TAS: S1 & S2 (regular); TNG: S6 — Relics; Star Trek: The Motion Picture; Star Trek II: The Wrath of Khan; Star Trek III: The Search for Spock; Star Trek IV: The Voyage Home; Star Trek V: The Final Frontier; Star Trek VI: The Undiscovered Country
Played By: James Doohan