Donald "Don" Eitner (born 29 November 1934; age 78) played the unnamed navigator in "Charlie X".

He was also William Shatner's body double as "Evil Kirk" or "Good Kirk" in "The Enemy Within".

Besides his two Star Trek appearances, Eitner played smaller roles in many television series and TV movies, including 12 O'Clock High, The Fugitive, Lost in Space, Desilu's Mission: Impossible and Mannix, Columbo, The Rockford Files and Dynasty, spanning four decades.

Body double for William Shatner
"The Enemy Within"

Navigator
"Charlie X"

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External link Edit

• Don Eitner at the Internet Movie Database