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This is a list of main characters' absences from episodes that credit them.

Jack ShephardEdit

				Jack Shephard
				from	"Pilot, Part 1"			to	"The End"
				appearances as main character				112 / 120 (93%)
previous appearances						later appearances
n/a						n/a
none				"The Other 48 Days"				"Flashes Before Your Eyes" "Tricia Tanaka is Dead" "Enter 77"
"Meet Kevin Johnson"				"Jughead" "Dead Is Dead"				"Recon"

Kate AustenEdit

				Kate Austen
				from	"Pilot, Part 1"			to	"The End"
				appearances as main character				107 / 120 (89%)
previous appearances						later appearances
n/a						n/a
none				"Abandoned" "The Other 48 Days" "One of Them"				"The Cost of Living" "Flashes Before Your Eyes"
"The Constant" "Meet Kevin Johnson"				"Jughead" "Dead Is Dead"				"The Substitute" "Dr. Linus" "Ab Aeterno" "Happily Ever After"

Hugo "Hurley" ReyesEdit

				Hugo "Hurley" Reyes
				from	"Pilot, Part 1"			to	"The End"
				appearances as main character				105 / 120 (88%)
previous appearances						later appearances
n/a						n/a
none				"The Other 48 Days"				"A Tale of Two Cities" "The Glass Ballerina" "I Do" "Not in Portland" "Stranger in a Strange Land" "Par Avion" "The Man from Tallahassee"
"The Constant"				"Jughead" "This Place Is Death" "Dead Is Dead"				"Sundown" "Recon" "Across the Sea"

James "Sawyer" FordEdit

				James "Sawyer" Ford
				from	"Pilot, Part 1"			to	"The End"
				appearances as main character				103 / 120 (86%)
previous appearances						later appearances
n/a						n/a
none				"Man of Science, Man of Faith"				"The Cost of Living" "Flashes Before Your Eyes" "The Man from Tallahassee" "D.O.C."
"The Constant" "Ji Yeon" "Cabin Fever"				"316" "The Life and Death of Jeremy Bentham" "Dead Is Dead"				"Lighthouse" "Sundown" "Dr. Linus" "Ab Aeterno" "Happily Ever After "Across the Sea"

John Locke (including the Man in Black in the form of John Locke)Edit

				John Locke
				from	"Pilot, Part 1"			to	"The End"
				appearances as main character				100 / 120 (83%)
previous appearances						later appearances
n/a						n/a
"Do No Harm"				"The Other 48 Days"				"A Tale of Two Cities" "The Glass Ballerina" "Every Man for Himself" "Not in Portland" "Stranger in a Strange Land" "One of Us" "Catch-22" "D.O.C." "Greatest Hits"
"The Constant" "Ji Yeon" "Something Nice Back Home"				"Namaste" "He's Our You" "Some Like It Hoth" "The Variable"				"What Kate Does" "Happily Ever After"

Sayid JarrahEdit

				Sayid Jarrah
				from	"Pilot, Part 1"			to	"The End"
				appearances as main character				97 / 120 (81%)
previous appearances						later appearances
n/a						n/a
none				"Adrift" "...And Found" "The 23rd Psalm" "Maternity Leave" "S.O.S." "?"				"A Tale of Two Cities" "Every Man for Himself" "Not in Portland" "Stranger in a Strange Land" "Catch-22" "D.O.C."
"Eggtown" "The Other Woman" "Something Nice Back Home"				"Jughead" "LaFleur" "Dead Is Dead" "Some Like It Hoth" "The Variable"				"Dr. Linus" "Ab Aeterno" "Across the Sea"

Jin-Soo KwonEdit

				Jin-Soo Kwon
				from	"Pilot, Part 1"			to	"The End"
				appearances as main character				91 / 120 (76%)
previous appearances						later appearances
n/a						n/a
"Solitary" "All the Best Cowboys Have Daddy Issues" "Whatever the Case May Be" "Special"				"Man of Science, Man of Faith" "Maternity Leave" "Lockdown"				"A Tale of Two Cities" "Every Man for Himself" "The Cost of Living" "I Do" "Not in Portland" "Flashes Before Your Eyes" "Stranger in a Strange Land" "The Man from Tallahassee"
"Confirmed Dead" "The Economist" "The Constant" "Meet Kevin Johnson"				"Because You Left" "Jughead" "The Life and Death of Jeremy Bentham" "Dead Is Dead" "Some Like It Hoth"				"Dr. Linus" "Ab Aeterno" "Everybody Loves Hugo" "Across the Sea" "What They Died For"

Sun-Hwa KwonEdit

				Sun-Hwa Kwon
				from	"Pilot, Part 1"			to	"The End"
				appearances as main character				87 / 120 (73%)
previous appearances						later appearances
n/a						n/a
"All the Best Cowboys Have Daddy Issues"				"Adrift" "Orientation" "Abandoned" "The Other 48 Days" "One of Them" "Lockdown" "Two for the Road" "?"				"A Tale of Two Cities" "Every Man for Himself" "The Cost of Living" "I Do" "Not in Portland" "Stranger in a Strange Land" "The Man from Tallahassee" "Catch-22" "The Brig"
"Confirmed Dead" "The Economist" "The Constant" "Meet Kevin Johnson"				"Jughead" "The Life and Death of Jeremy Bentham" "LaFleur" "Some Like It Hoth" "The Variable"				"What Kate Does" "Lighthouse" "Recon" "Happily Ever After" "Across the Sea" "What They Died For"

Claire LittletonEdit

				Claire Littleton
				from	"Pilot, Part 1"			to	"There's No Place Like Home, Part 3"
					"LA X, Part 1"				"The End"
				appearances as main character				70 / 98 (71%)
previous appearances						later appearances
n/a						"The Little Prince" (uncredited, archive footage)
"Deus Ex Machina"				"Orientation" "The Other 48 Days" "Collision" "One of Them" "The Whole Truth" "Dave" "Two for the Road" "?				"A Tale of Two Cities" "The Glass Ballerina" "The Cost of Living" "I Do" "Not in Portland" "Stranger in a Strange Land" "Enter 77" "The Man from Tallahassee" "Catch-22" "The Brig"
"The Constant" "Ji Yeon" "There's No Place Like Home, Part 1" "There's No Place Like Home, Part 2"								"LA X, Part 1" "The Substitute" "Dr. Linus" "Ab Aeterno" "Across the Sea"

Note: Emilie De Ravin was not credited with the main cast for the episodes "House of the Rising Sun", "The Moth", "Solitary", "Whatever the Case May Be" and "Hearts and Minds".

Charlie PaceEdit

				Charlie Pace
				from	"Pilot, Part 1"			to	"The Beginning of the End"
				appearances as main character				62 / 74 (84%)
previous appearances						later appearances
n/a						"LA X, Part 1" "Happily Ever After" "The End"
"Deus Ex Machina"				"Orientation" "...And Found" "The Other 48 Days" "Maternity Leave" "Two for the Road"				"A Tale of Two Cities" "The Glass Ballerina" "I Do" "Not in Portland" "Stranger in a Strange Land" "The Man from Tallahassee"
none								none

Note: Dominic Monaghan was credited as a regular cast member for his appearance in "The End".

Benjamin LinusEdit

				Benjamin Linus
				from	"A Tale of Two Cities"			to	"The End"
				appearances as main character				51 / 71 (72%)
previous appearances						later appearances
"One of Them" "Maternity Leave" "The Whole Truth" "Lockdown" "Dave" "S.O.S." "Two for the Road" "Live Together, Die Alone, Part 2"						n/a
								"Flashes Before Your Eyes" "Tricia Tanaka Is Dead" "Enter 77" "Par Avion" "Left Behind" "Catch-22" "D.O.C."
"The Constant" "Ji Yeon" "Something Nice Back Home"				"Jughead" "LaFleur" "Some Like It Hoth" "The Variable"				"What Kate Does" "Lighthouse" "Recon" "Happily Ever After" "The Candidate" "Across the Sea"

Desmond HumeEdit

				Desmond Hume
				from	"A Tale of Two Cities"			to	"The End"
				appearances as main character				40 / 71 (56%)
previous appearances						later appearances
"Man of Science, Man of Faith" "Adrift" "Orientation" "Live Together, Die Alone, Part 1" "Live Together, Die Alone, Part 2"						n/a
								"A Tale of Two Cities" "The Glass Ballerina" "Not in Portland" "Stranger in a Strange Land" "Enter 77" "The Man from Tallahassee"
"Confirmed Dead" "Eggtown" "The Other Woman" "The Shape of Things to Come" "Something Nice Back Home"				"The Little Prince" "The Life and Death of Jeremy Bentham" "LaFleur" "Namaste" "He's Our You" "Whatever Happened, Happened" "Some Like It Hoth" "Follow the Leader" "The Incident, Part 1" "The Incident, Part 2"				"LA X, Part 2" "What Kate Does" "The Substitute" "Lighthouse" "Sundown" "Dr. Linus" "Recon" "Ab Aeterno" "The Candidate" "Across the Sea"

Michael DawsonEdit

				Michael Dawson
				from	"Pilot, Part 1"			to	"Live Together, Die Alone, Part 2"
					"The Beginning of the End"				"There's No Place Like Home, Part 3"
				appearances as main character				47 / 63 (75%)
previous appearances						later appearances
n/a						"Everybody Loves Hugo"
none				"Man of Science, Man of Faith" "Fire + Water" "The Long Con" "One of Them" "Maternity Leave" "The Whole Truth" "Lockdown" "Dave"
"The Beginning of the End" "Confirmed Dead" "The Economist" "Eggtown" "The Constant" "The Other Woman" "The Shape of Things to Come" "Something Nice Back Home"

Juliet BurkeEdit

				Juliet Burke
				from	"A Tale of Two Cities"			to	"The Incident, Part 2"
				appearances as main character				46 / 55 (84%)
previous appearances						later appearances
n/a						"LA X, Part 1" "LA X, Part 2" "The End"
								"Further Instructions" "Flashes Before Your Eyes" "Tricia Tanaka Is Dead" "Enter 77" "Par Avion"
"Meet Kevin Johnson"				"316" "The Life and Death of Jeremy Bentham" "Dead Is Dead"				none

Note: Elizabeth Mitchell was credited as a regular cast member for her appearance in "The End".

Miles StraumeEdit

				Miles Straume
				from	"The Beginning of the End"			to	"The End"
				appearances as main character				33 / 48 (69%)
previous appearances						later appearances
n/a						n/a
"The Beginning of the End" "The Constant" "The Other Woman" "Ji Yeon" "Cabin Fever" "There's No Place Like Home, Part 3"				"316" "The Life and Death of Jeremy Bentham" "He's Our You" "Dead Is Dead"				"The Substitute" "Happily Ever After" "The Candidate" "Across the Sea"

Shannon RutherfordEdit

				Shannon Rutherford
				from	"Pilot, Part 1"			to	"The Other 48 Days"
				appearances as main character				28 / 33 (85%)
previous appearances						later appearances
n/a						"Collision" "Exposé" "The End"
"Outlaws" "Deus Ex Machina"				"Adrift" "Orientation" "...And Found"
								none

Note: Maggie Grace was credited as a regular cast member for her appearance in "The End".

Daniel FaradayEdit

				Daniel Faraday
				from	"The Beginning of the End"			to	"The Incident, Part 2"
				appearances as main character				22 / 32 (69%)
previous appearances						later appearances
n/a						"Happily Ever After" "The End"
"Meet Kevin Johnson" "Cabin Fever"				"316" "The Life and Death of Jeremy Bentham" "Namaste" "He's Our You" "Whatever Happened, Happened" "Dead Is Dead" "The Incident, Part 1" "The Incident, Part 2"				none

Note: Jeremy Davies was credited as a regular cast member for his appearance in "The End".

Walt LloydEdit

				Walt Lloyd
				from	"Pilot, Part 1"			to	"Adrift"
				appearances as main character				27 / 30 (90%)
previous appearances						later appearances
n/a						"Abandoned" "Three Minutes" "Live Together, Die Alone, Part 2" "Through the Looking Glass, Part 1" "Meet Kevin Johnson" (uncredited) "There's No Place Like Home, Part 2" "The Life and Death of Jeremy Bentham"
"Confidence Man" "Raised by Another" "Deus Ex Machina"				none

Note: Malcolm David Kelley was credited as a regular cast member for his appearances in "Abandoned", "Three Minutes" and "Live Together, Die Alone, Part 2".

Boone CarlyleEdit

				Boone Carlyle
				from	"Pilot, Part 1"			to	"Exodus, Part 3"
				appearances as main character				22 / 26 (85%)
previous appearances						later appearances
n/a						"Abandoned" "Further Instructions" "Exposé" "LA X, Part 1" "The End"
"Outlaws" "Numbers" "Born to Run" "Exodus, Part 2"
								none

Note: Ian Somerhalder was credited as a regular cast member for his appearance in "The End".

Mr. EkoEdit

				Mr. Eko
				from	"Everybody Hates Hugo"			to	"I Do"
				appearances as main character				19 / 27 (70%)
previous appearances						later appearances
"Adrift" "Orientation"						n/a
				"The Hunting Party" "One of Them" "The Whole Truth" "Lockdown" "Two for the Road"				"A Tale of Two Cities" "The Glass Ballerina" "Every Man for Himself"

Ana Lucia CortezEdit

				Ana Lucia Cortez
				from	"Man of Science, Man of Faith"			to	"Live Together, Die Alone, Part 2"
				appearances as main character				19 / 24 (79%)
previous appearances						later appearances
"Exodus, Part 1"						"The Lie" "What They Died For"
				"Man of Science, Man of Faith" "Maternity Leave" "Three Minutes" "Live Together, Die Alone, Part 1" "Live Together, Die Alone, Part 2"

Libby SmithEdit

				Libby Smith
				from	"Everybody Hates Hugo"			to	"Live Together, Die Alone, Part 2"
				appearances as main character				17 / 22 (77%)
previous appearances						later appearances
"Adrift" (portrayed by stand-in) "Orientation" (portrayed by stand-in)						"Meet Kevin Johnson" "Everybody Loves Hugo" "The End"
				"The Hunting Party" "One of Them" "The Whole Truth" "Three Minutes" "Live Together, Die Alone, Part 2"
								none

Note: Cynthia Watros was credited as a regular cast member for her appearance in "The End".

Charlotte LewisEdit

				Charlotte Lewis
				from	"The Beginning of the End"			to	"This Place is Death"
				appearances as main character				16 / 20 (80%)
previous appearances						later appearances
n/a						"LaFleur" (as a child) "The Variable" (as a child) "Follow the Leader" (as a child) "Recon" "The End"
"The Beginning of the End" "Meet Kevin Johnson" "Cabin Fever" "There's No Place Like Home, Part 3"				none				none

Note: Rebecca Mader was credited as a regular cast member for her appearance in "The End".

Frank LapidusEdit

				Frank Lapidus
				from	"LA X, Part 1"			to	"The End"
				appearances as main character				11 / 17 (65%)
previous appearances						later appearances
"Confirmed Dead" "The Economist" "The Constant" "Ji Yeon" "Meet Kevin Johnson" "Something Nice Back Home" "Cabin Fever" "There's No Place Like Home, Part 1" "There's No Place Like Home, Part 2" "There's No Place Like Home, Part 3" "The Lie" "316" "Namaste" "Dead Is Dead" "The Incident, Part 1" "The Incident, Part 2"						n/a
								"What Kate Does" "Lighthouse" "Recon" "Happily Ever After" "Across the Sea" "What They Died For"

Richard AlpertEdit

				Richard Alpert
				from	"LA X, Part 1"			to	"The End"
				appearances as main character				9 / 17 (53%)
previous appearances						later appearances
"Not in Portland" "The Man from Tallahassee" "One of Us" "The Brig" "The Man Behind the Curtain" "Greatest Hits" "Through the Looking Glass, Part 1" "Cabin Fever" "There's No Place Like Home, Part 1" "There's No Place Like Home, Part 2" "There's No Place Like Home, Part 3 "Because You Left" "Jughead" "LaFleur" "Whatever Happened, Happened" "Dead Is Dead" "The Variable" "Follow the Leader" "The Incident, Part 1" "The Incident, Part 2"						n/a
								"What Kate Does" "Lighthouse" "Sundown" "Recon" "Happily Ever After" "The Last Recruit" "The Candidate" "Across the Sea"

Ilana VerdanskyEdit

				Ilana Verdansky
				from	"LA X, Part 1"			to	"The End"
				appearances as main character				9 / 17 (53%)
previous appearances						later appearances
"316" "The Life and Death of Jeremy Bentham" "Namaste" "He's Our You" "Dead Is Dead" "The Incident, Part 1" "The Incident, Part 2"						n/a
								"What Kate Does" "Lighthouse" "Recon" "Happily Ever After" "The Candidate" "Across the Sea" "What They Died For"

PauloEdit

				Paulo
				from	"A Tale of Two Cities"			to	"Exposé"
				appearances as main character				7 / 14 (50%)
previous appearances						later appearances
n/a						n/a
								"A Tale of Two Cities" "The Glass Ballerina" "Not in Portland" "Flashes Before Your Eyes" "Stranger in a Strange Land" "Par Avion" "The Man from Tallahassee"

Nikki FernandezEdit

				Nikki Fernandez
				from	"A Tale of Two Cities"			to	"Exposé"
				appearances as main character				6 / 14 (43%)
previous appearances						later appearances
n/a						"Ji Yeon" (uncredited, archive footage)
								"A Tale of Two Cities" "The Glass Ballerina" "Every Man for Himself" "Not in Portland" "Flashes Before Your Eyes" "Stranger in a Strange Land" "Par Avion" "The Man from Tallahassee"

OtherEdit

Sam Anderson, L. Scott Caldwell, Francois Chau, Fionnula Flanagan, John Terry and Sonya Walger were credited as main characters in "The End". Consequently, they appeared in 100% of the episodes in which they were credited as main characters.