Mr. Spock

My favorite Star Trek character.  Leonard Nimoy's portrayal of the half-Vulcan, half-human first officer limited his acting career for some time, but only a talented actor could pull off such a natural & likable performance so easily.  Having worked to eliminate his heavy Boston accent, Nimoy also appeared as a regular on the original Mission: Impossible and eventually became a feature-film director (Three Men & a Baby), a fine art photographer, and joined another world-wide Sci-Fi juggernaut.  He lent his distinctive voice to the Transformers universe; first as the voice of Galvatron, in Transformers: The Animated Movie and then as Sentinel Prime, in Transformers: Dark of the Moon.  Leonard Nimoy sadly passed away last year, but his & Spock's popularity continue to soar. Since the series' inception, Spock is the single most merchandised character in the world of Star Trek.