Star Trek The Animated Series. Premiered in 1973 and ran until 1975. It featured all the original actors' voices.
Star Trek TAS Crew
Star Trek - animated series
Juan Ortiz Animated Series Poster
Star Trek the Animated Series Coloring page
Star Trek The Animated Series: James T. Kirk Paper Cut-Out - DocGold13
Star Trek The Animated Series
The Trek Collective: Amazing concept art for a new Star Trek animated series
By Barclay Jjv: Celebrate ‘Star Trek’s 50th Anniversary with ‘Star...
Star Trek The Animated Series - The Animated Adventures of Gene Roddenberry's Star Trek: William Shatner, Majel Barrett, Bill Reed