Many of the Actors Hated the Shows
Over the Star Trek years, many actors disliked their time on Star Trek and made it known. Robert Beltran being Chakotay on ‘Voyager.’ The series didn’t pay him much attention, and Chakotay himself was as wooden as a forest. Diana Muldaur, who played Dr. Katherine Pulaski on ‘The Next Generation,’ hated her time on the show and left after a single season.
Source: TrekNews.net
William Shatner, Patrick Stewart, Leonard Nimoy, and DeForest Kelley all tried at different times to escape their Star Trek roles, but eventually grew to appreciate their roles in pop culture and what the characters mean to fans.