Lost The Constant (Season 4, Episode 5)
TV-14
TV Episode | 43 min | Adventure, Drama, Fantasy

Lost

The Constant (Season 4, Episode 5)

TV-14

TV Episode | 43 min | Adventure, Drama, Fantasy

During the helicopter ride to the ship, Desmond's consciousness begins jumping back and forth between present day 2004 and 1996. He is forced to find Daniel Faraday in 1996 in order to get answers and stop the jumps.

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Cast	+ Add Cast
28 cast members

Name	Known for
Naveen Andrews Sayid Jarrah Sayid Jarrah See fewer	The English Patient (1996)
Henry Ian Cusick Desmond Hume Desmond Hume See fewer	Lost (2004)
Jeremy Davies Dr. Daniel Faraday Dr. Daniel Faraday See fewer	Saving Private Ryan (1998)
Emilie de Ravin Claire Littleton (credit only) Claire Littleton (credit only) See fewer	Remember Me (I) (2010)
Michael Emerson Ben Linus (credit only) Ben Linus (credit only) See fewer	Saw (2004)
Matthew Fox Dr. Jack Shephard Dr. Jack Shephard See fewer	Bone Tomahawk (2015)
Jorge Garcia Hugo 'Hurley' Reyes (credit only) Hugo 'Hurley' Reyes (credit only) See fewer	Lost (2004)
Josh Holloway James 'Sawyer' Ford (credit only) James 'Sawyer' Ford (credit only) See fewer	Lost (2004)
Daniel Dae Kim Jin-Soo Kwon (credit only) Jin-Soo Kwon (credit only) See fewer	Insurgent (2015)
Yunjin Kim Sun-Hwa Kwon (credit only) Sun-Hwa Kwon (credit only) See fewer	Lost (2004)
Ken Leung Miles Straume (credit only) Miles Straume (credit only) See fewer	Old (2021)
Evangeline Lilly Kate Austen (credit only) Kate Austen (credit only) See fewer	The Hobbit: The Desolation of Smaug (2013)
Rebecca Mader Dr. Charlotte Lewis Dr. Charlotte Lewis See fewer	The Devil Wears Prada (2006)
Elizabeth Mitchell Dr. Juliet Burke Dr. Juliet Burke See fewer	The Purge: Election Year (2016)
Terry O'Quinn John Locke (credit only) John Locke (credit only) See fewer	Lost (2004)
Harold Perrineau Michael Dawson (credit only) Michael Dawson (credit only) See fewer	Romeo + Juliet (1996)
Anthony Azizi Omar Idris Omar Idris See fewer	Eagle Eye (2008)
Alan Dale Charles Widmore Charles Widmore See fewer	Priest (2011)
Kevin Durand Martin Keamy Martin Keamy See fewer	Kingdom of the Planet of the Apes (2024)
Jeff Fahey Frank Lapidus Frank Lapidus See fewer	Lost (2004)
Fisher Stevens George Minkowski George Minkowski See fewer	Short Circuit (1986)
Sonya Walger Penelope 'Penny' Widmore Penelope 'Penny' Widmore See fewer	The Librarian: Quest for the Spear (2004)
Chris Barnes Suited Guard Suited Guard See fewer	Ready Player One (I) (2018)
Edward Conery Auctioneer Auctioneer See fewer	Babylon 5 (1993)
Chris Gibbon Soldier Soldier See fewer	Lost (2004)
Darren Keefe Reiher Billy (as Darren Keefe) Billy (as Darren Keefe) See fewer	Truth About Kerry (2010)
Graham McTavish Sergeant Sergeant See fewer	The Hobbit: An Unexpected Journey (2012)
Marc Vann Doctor (uncredited) Doctor (uncredited) See fewer	Ghost World (2001)