Jeffrey Warren Daniels (born February 19, 1955) is an American actor, musician, and playwright whose career includes roles in films, stage productions, and television, for which he has won two Emmy Awards and received several Golden Globe, Screen Actors Guild, and Tony Award nominations.
He made his film debut in Ragtime (1981), and amassed such additional credits as Terms of Endearment (1983), Arachnophobia (1990), Gettysburg (1993), Speed (1994), 101 Dalmatians (1996), Fly Away Home (1996), Pleasantville (1998), The Hours (2002), Gods and Generals (2003), Good Night, and Good Luck (2005), Infamous (2006), The Lookout (2007), Looper (2012), Steve Jobs (2015), and The Martian (2015).
Daniels is also known for playing Harry Dunne in the buddy comedy Dumb and Dumber (1994) and its sequel Dumb and Dumber To (2014).
He received Golden Globe Award nominations for Best Actor for his performances in The Purple Rose of Cairo (1985), Something Wild (1986), and The Squid and the Whale (2005).
Daniels has also received a number of award nominations for his work on stage, including Tony Award nominations for Best Actor for his roles in the plays God of Carnage, Blackbird and To Kill a Mockingbird.
He is the founder and current executive director of the Chelsea, Michigan–based Purple Rose Theatre Company.
From 2012 to 2014, Daniels starred as Will McAvoy in the HBO political drama series The Newsroom, for which he won the 2013 Primetime Emmy Award for Outstanding Lead Actor in a Drama Series and received Golden Globe and Screen Actors Guild Award nominations.
He won a second Primetime Emmy Award in 2018 for his supporting performance in the Netflix miniseries Godless (2017) and an additional nomination that year for his leading performance as John P.
O'Neill in the Hulu miniseries The Looming Tower (2018).