  Stewart also said his success on Star Trek "really hurt" his career for a time, but noted how he was "fortunate" to be part of of the Trek franchise as well as the X-Men franchise. However, due to his experience with Star Trek, he had some hesitation before taking on the role of Professor Charles Xavier, saying:  I was reluctant at first because the "Star Trek" movies were over and I was already beginning to experience a negative aspect of them. Close identification, partly through the television series, with one character can discourage directors or producers from wanting to employ you in other means, because the identification's so strong.  Stewart eventually ended up playing Professor "X" Charles Xavier in more movies than he played Jean-Luc Picard.  Stewart