A

• Ajira Airways Flight 316 Crew and Passengers
• Arabic characters
• Artists
• Attorneys
• Australian characters

B

• Background character lists
• British characters
• Businesspersons

C

• Cancer survivors
• Children
• Criminals

C cont.

• Current or Former Military

F

• Food services
• Freighter
• French characters

H

• Hoteliers, bartenders and waiters

I

• Island protectors

J

• Jacob's candidates

K

• Korean characters

L

• Law enforcement

M

• Medical Personnel
• Multilingual characters

N

• Nigerian characters

P

• Pilots and flight attendants

R

• Religion or occult

S

• Salespeople
• Scientists
• Security

T

• Teachers

U

• Unnamed characters

W

• Widmore's Submarine

A

• List of Ajira Flight 316 survivors

B

• Bésixdouze expedition

C

• Claudia's people

D

• Deceased islanders
• DHARMA Initiative
• Drug smugglers

I

• Ian and Pam

J

• Jacob's followers

L

• List of DHARMA Initiative members
• List of Kahana crew
• List of Others

M

• Man in Black's recruits
• Medical personnel
• Mercenary team

O

• Oceanic Flight 815 crash victims

O cont.

• List of Oceanic Flight 815 survivors
• Oceanic Six
• The Others

P

• Portal:DHARMA Initiative
• Portal:Find 815 Characters
• Portal:Flash-forward Characters
• Portal:Flash-sideways Characters
• Portal:Flashback Characters
• Portal:Flight 316 passengers
• Portal:Flight 815 passengers
• Portal:Jacob's Faction
• Portal:Kahana
• Portal:Main Characters
• Portal:Man in Black's Faction
• Portal:Minor Characters

P cont.

• Portal:Recurring Characters
• Portal:Science Expedition
• Portal:Supporting Characters
• Portal:The Lost Experience characters
• Portal:The Others
• Portal:Widmore Corporation

S

• Sawyer's group
• Science team
• Station explorers
• Arlene and Joseph Stewart
• Survivor factions

T

• Tailies

U

• United States Army

W

• Widmore family
• Widmore's team