Extremist
An extremist, radical, fanatic, or zealot was someone who was extremely devoted to a cause, to the point of committing criminal acts. 

In 2154, Stel described Syrran, leader of the dissident Syrrannites, as having become a dangerous zealot over the past year. ()

In 2259, Christopher Pike described the s as being "zealot-like". ()

See also
 Logic extremist

External link

Societal classifications
Philosophy