John William "Will" Ferrell (pronounced /ˈfɛrəl/; born July 16, 1967) is an American comedian, actor, voice actor and writer. He first established himself as a cast member of Saturday Night Live, and has since gone on to a film career, starring in the comedies A Night at the Roxbury (1998), Old School, Elf (both 2003), Anchorman (2004), Kicking & Screaming (2005), Talladega Nights, Stranger than Fiction (both 2006), Blades of Glory (2007), Semi-Pro, Step Brothers (both 2008), and Land of the Lost (2009). He is considered a member of the Frat Pack, a generation of leading Hollywood comic actors to emerge in the late 1990s and the 2000s including Ben Stiller, Steve Carell, Jack Black, Vince Vaughn, and brothers Owen and Luke Wilson. In 2009 he was nominated for a Tony Award for his work in You're Welcome America: A Final Night with George W. Bush.

Will Ferrell was born in Irvine, California, the son of Kay (née Overman), a teacher, and Lee Ferrell, a keyboardist for The Righteous Brothers. He has Irish ancestry from County Kerry in Ireland. He first attended school at Turtle Rock Elementary, and later attended Rancho San Joaquin Middle School, both in Irvine, CA. He attended University High School in Irvine, CA, and was a kicker for the school's varsity football team. He told the Orange County Register that the dullness of Irvine contributed to the growth of his humor. "Growing up in suburbia, in safe, master-planned Irvine, there was no drama so we had to create it in our heads. My main form of entertainment was cracking my friends up and exploring new ways of being funny. I didn't have to have the survival mode instinct like other comics, who grew up in tough neighborhoods. I had the opposite. For me, I grew up in Mayberry, and the humor broke the boredom. And there was a lot to make fun of."

He enrolled at the University of Southern California, where he studied Sports Broadcasting and graduated with a degree in Sports Information. He is also a member of Delta Tau Delta Fraternity. After graduating in 1990, he developed his improvisation skills as a member of the comedy group The Groundlings.