Premise: William Shatner ( born March 22 , 1931 ) is a Canadian actor , author , producer , and director . In his seven decades of television , Shatner became a cultural icon for his portrayal of James T. Kirk , Captain of the USS Enterprise , in the Star Trek franchise . Shatner also played the eponymous veteran police sergeant in T. J. Hooker ( 1982 -- 86 ) and hosted the reality-based television series , Rescue 911 ( 1989 -- 96 ) , which won a People 's Choice Award for the Favorite New TV Dramatic Series . Shatner also appeared in the NBC series , 3rd Rock from the Sun in seasons 4 and 5 as the role of the `` Big Giant Head '' whom the alien characters of the Series reported to .
Hypothesis: Acting is William Shatner's profession.
Label: ENTAILMENT