William Thomas Hader Jr. is an American actor, comedian, writer, and producer. He gained widespread attention for his eight-year stint as a cast member on the long-running NBC sketch comedy series Saturday Night Live from 2005 to 2013, for which he received four Primetime Emmy Award nominations and a Peabody Award. He became known for his impressions and especially for his work on the Weekend Update segments, where he played Stefon Meyers, a flamboyant New York City nightclub tour guide.
Hader was born in Tulsa, Oklahoma, on June 7, 1978, the son of dance teacher Sherri Renee (née Patton; b. 1956) and air cargo company owner, restaurant manager, truck driver, and occasional stand-up comedian William Thomas Hader (b. 1953). He has two younger sisters, Katie and Kara. His ancestry includes Danish, English, German and Irish. He attended Patrick Henry Elementary School, Edison Junior High and Cascia Hall Preparatory School.
Hader grew up with writer Duffy Boudreau, with whom he later collaborated. He says he "had a hard time focusing in class" and "was always joking around". Feeling he did not fit in, Hader filled his time watching movies and reading. He appreciated Monty Python, British comedy, and the films of Woody Allen and Mel Brooks, much of which his father showed him. He made short films with friends and starred in a school production of The Glass Menagerie. He was unable to gain admission to top film schools because of his "abysmal" grades, so he enrolled at The Art Institute of Phoenix, and later Scottsdale Community College. Hader's first job was as a Christmas tree salesman. He was also an usher at a Tempe cinema, where he could see films for free, but was fired for spoiling the ending of Titanic (1997) for unruly viewers. At Scottsdale Community College, he met Nicholas Jasenovec, who later directed Paper Heart (2009). In May 2024, Hader gave the commencement speech for Chapman College's graduating class and received an honorary P.h.D.