The Leonard Nimoy celebrity doll depicts him as Mr. Spock in the original Star Trek television series.  The show ran from 1966-1969 on NBC.

This Mr. Spock doll was made by Playmate, Inc. in  1996 as part of the  Star Trek Collector Edition: “Where No Man Has Gone Before” .  This series commemorates  the television actors in the pilot episode of the original series at the 30th anniversary of the show.

The Celebrity Doll Museum has other Star Trek action figures in the collection: James T. Kirk (William Shatner), Lieutenant Uhura (Nichelle Nichols), Lieutenant Hikaru Sulu (George Takei), and Captain Jean-Luc Picard from The Next Generation (Patrick Stewart).

Price check the Leonard Nimoy doll on Amazon

Price check the Leonard Nimoy doll on Ebay
 
 

While not in the museum  Quantum Mechanix makes at least five high-end 1/6 scale action figures of Star Trek characters including William Shatner..