Carl Grimes is a fictional character from the comic book series "The Walking Dead" and is portrayed by Chandler Riggs in the American television series of the same name, which airs on AMC in the United States.
 The character was created by writer Robert Kirkman and artist Tony Moore, and debuted in "The Walking Dead" #2 in 2003.
 In both forms of media, Carl is the son of primary protagonist Rick Grimes, and his wife Lori Grimes, and is one of the longest-surviving characters and one of the few original Atlanta survivors still alive.
"Clear" is the twelfth episode of the third season and 31st episode overall of the post-apocalyptic horror television series "The Walking Dead", which originally aired on AMC in the United States on March 3, 2013.
 The episode was written by Scott M. Gimple and directed by Tricia Brock.
 In this episode, Rick Grimes (Andrew Lincoln), Carl Grimes (Chandler Riggs), and Michonne (Danai Gurira) go on a supply run to Rick's hometown, initially to his old police station, for more weapons for the upcoming battle against The Governor.
 This episode marks the return of Morgan Jones (Lennie James), who was last seen in the series pilot episode, "Days Gone Bye".
Hershel Greene is a fictional character in "The Walking Dead" whose role is depicted in the comic book, television series as portrayed by Scott Wilson and the game series.
 He is the widowed owner of a farm in Georgia and has previous experience in the veterinary fields.
 A devout Christian, with uncompromising morals and a stubborn attitude, Hershel remains fiercely protective of his large family, despite his many losses.
 In both the comics and television series, he is initially introduced saving the life of Carl Grimes, the son of Rick Grimes after he is shot by one of Hershel's neighbors, Otis, and becomes the moral center of the group .
"Triggerfinger" is the ninth episode of the second season and 15th episode overall of the post-apocalyptic horror television series "The Walking Dead".
 It originally aired on AMC in the United States on February 19, 2012.
 The episode was written by David Leslie Johnson and was directed by Billy Gierhart.
 In the episode, Rick Grimes (Andrew Lincoln)'s actions initiate a standoff between his group, Dave (Michael Raymond-James) and Tony's (Aaron Munoz) men, and the walkers nearby.
 Meanwhile, Shane Walsh (Jon Bernthal) decides to save Lori Grimes (Sarah Wayne Callies), who has been injured in a car accident.
"Crossed" is the seventh episode of the fifth season and 58th episode overall of the post-apocalyptic horror television series "The Walking Dead", which aired on AMC on November 23, 2014.
 It was written by Seth Hoffman and directed by Billy Gierhart.
 In the episode, Michonne and Carl Grimes stay at the barricaded Church with Gabriel Stokes as Rick Grimes and the others go on a rescue mission for Beth Greene and Carol Peletier in Atlanta.
 The episode received generally positive reviews, though most noted the set up for the mid-season finale.
 This is the first episode to feature all credited series regulars for the fifth season.
"Vatos" is the fourth episode of the post-apocalyptic horror television series "The Walking Dead".
 It originally aired on AMC in the United States on November 21, 2010.
 The episode was written by Robert Kirkman and Elvis Jasso Marín, and directed by Johan Renck.
 In the episode, Rick Grimes (Andrew Lincoln), Daryl Dixon (Norman Reedus), Theodore "T-Dog" Douglas (IronE Singleton), and Glenn Rhee (Steven Yeun) return to downtown Atlanta in search of Daryl's brother, Merle.
 The group are later targeted by a Latino gang, whose leader threatens to kill them if they do not relinquish their weapons.
 Meanwhile, Lori Grimes (Sarah Wayne Callies) and Shane Walsh (Jon Bernthal)'s relationship begins to crumble.
Lori Grimes is a fictional character from the comic book series "The Walking Dead" and is portrayed by Sarah Wayne Callies in the American television series of the same name in the show's first three seasons.
 Created by writer Robert Kirkman and artist Tony Moore, the character made her debut in "The Walking Dead" #2 in 2003.
 In both forms of media, she is the wife of protagonist Rick Grimes and mother of Carl, and serves as the emotional core of the group.
 The character escaped the zombie apocalypse with Carl and Rick's partner Shane Walsh, and, believing her husband to be dead, started a relationship with Shane.
"Secrets" is the sixth episode of the second season and 12th episode overall of the post-apocalyptic horror television series "The Walking Dead".
 It originally aired on AMC in the United States on November 20, 2011.
 In this episode, Glenn (Steven Yeun) tells Dale Horvath (Jeffrey DeMunn) that Lori Grimes (Sarah Wayne Callies) is pregnant and there are numerous walkers in the Greene barn.
 Dale confronts Hershel Greene (Scott Wilson) about hoarding walkers in his barn.
 Meanwhile, Shane Walsh (Jon Bernthal) attempts to teach Andrea (Laurie Holden) how to use weapons and Lori agonizes over the decision to terminate her pregnancy or keep the baby.
Rick Grimes is a fictional character and the protagonist in the comic book series "The Walking Dead" and the television series of the same name, portrayed by Andrew Lincoln.
 Created by writer Robert Kirkman and artist Tony Moore, the character made his debut in "The Walking Dead" #1 in 2003.
 Rick Grimes is a small town sheriff's deputy who has a son, Carl, with wife Lori.
 He awakens from a coma after a life-threatening gun shot wound to find the world overrun by zombies, to which they refer as "walkers".
"Judge, Jury, Executioner" is the eleventh episode of the second season and 17th episode overall of the post-apocalyptic horror television series "The Walking Dead".
 It originally aired on AMC in the United States on March 4, 2012.
 In this episode, Rick Grimes (Andrew Lincoln) and his group opt to execute Randall (Michael Zegen), much to the frustration of Dale Horvath (Jeffrey DeMunn).
 Dale fears that the group is losing their humanity, which prompts him to persuade some of the group members to protest against the consensus.
 Meanwhile, Carl Grimes (Chandler Riggs) behaves recklessly and carelessly, going as far as to steal Daryl Dixon (Norman Reedus)'s gun and harass a walker, which will ultimately initiate grave consequences for the group.

Question: Which character in "The Walking Dead" has survived the longest, Lori Grimes or Carl Grimes?
Answer: Carl Grimes