Jeffrey Warren Daniels is an American actor, musician, and playwright whose career includes roles in films, stage productions, and on television, for which he has won two Emmy Awards and received Golden Globe, Screen Actors Guild and Tony Award nominations.
Making his film debut in Ragtime, Daniels's film credits include Terms of Endearment, Arachnophobia, Gettysburg, Speed, 101 Dalmatians, Fly Away Home, Pleasantville, The Hours, Gods and Generals and Good Night, and Good Luck, The Lookout, Infamous, Looper, Steve Jobs, and The Martian.
Daniels is also known for playing Harry Dunne in the buddy comedy Dumb and Dumber and its sequel Dumb and Dumber To. He received Golden Globe Award nominations for Best Actor, for his performances in The Purple Rose of Cairo, Something Wild, and The Squid and the Whale.