Saturday Night Live's 40th season premiered with which American actor as the first host?
Saturday Night Live (season 40):  The season premiered on September 27, 2014, with host Chris Pratt and musical guest Ariana Grande and came to a conclusion on May 16, 2015 with host Louis C.K. and musical guest Rihanna. Chris Pratt: Christopher Michael Pratt (born June 21, 1979) is an American actor.
Christopher Michael Pratt