DJ Frontal Assault is one of his characters on SNL.
In addition to SNL, Hader has also made several short films, including Back in the Day (alongside Derek Waters and wife Maggie Carey), Sounds Good to Me: Remastering the Sting, and Calvin.
Bill's impressions include Al Pacino, Mahmoud Ahmadinejad, Peter Gallagher, Peter O'Toole, and Vincent Price.
Bill stated that his five favorite movies of the past ten years are Schizopolis (Steven Soderbergh 1997), Rushmore (Wes Anderson 1998), Election (Alexander Payne 1999), Sexy Beast (Jonathan Glazer 2001), and Lord of the Rings: Fellowship of the Ring (Peter Jackson 2001.)
His favorite comic book writers are Allan Moore, Mike Mignola, and Neil Gaiman.
Is a fan of writers Neil Gaiman, George Saunders, Neil Stephenson, Ray Bradbury, Richard Mathesion, Stephen King, Michael Chabon, John Wyndham, Cormac McCarthy, Flannery O'Connor, and Kurt Vonnegut.
His first big screen movie was the 2006 movie Doogal.
He and his wife, Maggie, wrote "Jenny Clone", produced it, and did voices for all 4 characters in the film.
Bill made his first television appearance on Punk'd.
Bill starred in the film Super Bad, in 2007.
Bill's first role on SNL was as a psychologist giving his views about life and death during the emergency landing of Jet Blue Flight 292.
He is a fan of author Douglas Adams.
He did a "James Cagney" impression for his audition for SNL.
He attended Cascia Hall Prepatory School.
Bill often impersonates well-known actors who are dead, like Vincent Price.
He camped out for Star Wars: Episode 1 with friends, and told people they were waiting for Backstreet Boys tickets.
Bill has two younger sisters.
Bill has been married to filmmaker Maggie Carey since 2006. Their daughter, Hannah Kathryn Hader was born on October 6th, 2009.
Favorite movies include Jaws, Barton Fink, The Last Detail, Badlands, A Clockwork Orange, Rushmore, The Evil Dead, and Monty Python and the Holy Grail.
Bill is a member of the sketch comedy group Animals from the Future, alongside Eric Filipkowsi, Mel Cowan, and Matt Offerman.
During his time at Second City, Hader worked as a production assistant on the DVD Empire of Dreams: The Story of the Star Wars Trilogy and Collateral Damage, as well as an assistant on VH1's The Surreal Life. Prior to SNL, Hader was perhaps most known for his work as a "field agent" on MTV's Punk'd.
Bill: I'm very comfortable with my geeky-ness. I'm proud of the nerdy s**t I did growing up. It gave me a weird sense of confidence. I know you guys think this is lame, but I don't care. I love it!