The Walking Dead Survivor Checklist (as of the Season 3 finale):
King County
-----------
Rick Grimes - alive
Morgan Jones - alive
Jenny Jones - dead
Duane Jones - dead
Atlanta Group
-------------
Lori Grimes - dead
Carl Grimes - alive
Judith Grimes - alive
Shane Walsh - dead
Glenn - alive
Dale Horvath - dead
Andrea - dead
Amy - dead
Jacqui - dead
Theodore "T-Dog" Douglas - dead
Jim - dead
Carol Peleiter - alive
Ed Peletier - dead
Sophia Peletier - dead
Daryl Dixon - alive
Merle Dixon - dead
The Morales Family (part of the Atlanta Group, but left to head for Alabama):
Morales - last seen alive, episode 1.5
Miranda - last seen alive, episode 1.5
Eliza - last seen alive, episode 1.5
Louis - last seen alive, episode 1.5
Atlanta
-------
Dr. Edwin Jenner (last surviving staff of the Center for Disease Control) - dead
The Vatos Gang (caregivers of the senior residents at an Atlanta nursing home):
Guillermo - last seen alive, episode 1.4
Miguel - last seen alive, episode 1.4
Felipe - last seen alive, episode 1.4
Jorge - last seen alive, episode 1.4
Greene Farm
-----------
Hershel Greene - alive
Maggie Greene - alive
Beth Greene - alive
Patricia - dead
Otis - dead
Jimmy - dead
Outskirts
---------
Michonne - alive
Unknown Gang (encountered by Rick, Hershel and Glenn in one of the neighboring towns):
Dave - dead
Tony - dead
Sean - dead
Randall - dead
Nate - last seen alive, episode 2.9
Mexican man - alive
Mexican woman with baby - alive
Mexican boy - alive
The Prison
----------
Tomas - dead
Andrew - dead
Big Tiny - dead
Axel - dead
Oscar - dead
Woodbury
--------
Philip Blake, The Governor - alive
Penny Blake - dead
Milton Mamet - dead
Caesar Martinez - alive
Shumpert - alive
Tim - dead
Crowley - dead
Gargulio - dead
Warren - dead
Haley - dead
Woodbury residents:
Karen - alive
army volunteers - dead
remaining - joined Rick's group at the Prison
National Guard
--------------
Corporal Brad - dead
Lt. Welles - dead
Franklin - dead
Sean - dead
Outside Prison
--------------
Tyreese - alive
Sasha - alive
Allen - dead
Donna - dead
Ben - dead
[end]