ick, Maggie, and Ezekiel rally their communities together to take down Negan. Gregory attempts to have the Hilltop residents’ side with Negan, but they all firmly stand behind Maggie. The group attacks the Sanctuary, taking down its fences and flooding the compound with walkers. With the Sanctuary overrun, everyone leaves except Gabriel, who reluctantly stays to save Gregory, but is left behind when Gregory abandons him. Surrounded by walkers, Gabriel hides in a trailer, where he is trapped inside with Negan.
The eighth season features twenty series regulars overall. For this season, Katelyn Nacon, Khary Payton, Steven Ogg, and Pollyanna McIntosh were promoted to series regular status, after previously having recurring roles, while Seth Gilliam and Ross Marquand were added to the opening credits.
- Andrew Lincoln as Rick Grimes, the series’ protagonist, a former sheriff’s deputy and the leader of Alexandria, who is leading a new alliance to fight Negan and the Saviors.
- Norman Reedus as Daryl Dixon, Rick’s right-hand man, the group’s primary hunter and a recruiter for Alexandria.
- Lauren Cohan as Maggie Greene, the pregnant widow of Glenn and a leading figure of the Hilltop.
- Chandler Riggs as Carl Grimes, Rick’s bold and courageous teenage son.
- Danai Gurira as Michonne, Rick’s katana-wielding girlfriend, who acts as a mother figure to Carl and Judith.
- Melissa McBride as Carol Peletier, a fierce survivor who is spurred into fighting the Saviors as revenge for the deaths of her friends.
- Lennie James as Morgan Jones, the first survivor Rick had ever encountered, who now resides in the Kingdom and fights for his sanity.
- Alanna Masterson as Tara Chambler, a caring, witty member of the group and supply runner for Alexandria who serves as a liaison with Oceanside.
- Josh McDermitt as Eugene Porter, a timorous former member of the group whose resourcefulness leads Negan to take him under his wing.
- Christian Serratos as Rosita Espinosa, an impulsive member of the group, who is motivated to avenge her ex-boyfriend Spencer and Abraham’s death.
- Seth Gilliam as Gabriel Stokes, a priest who has become hardened from his experiences with Rick’s group.
- Ross Marquand as Aaron, an Alexandrian recruiter who brought Rick’s group to Alexandria and is currently in the fight against the Saviors.
- Jeffrey Dean Morgan as Negan, the leader of the Saviors who serves as the season’s primary antagonist.
- Austin Amelio as Dwight, a former subordinate of Negan who now works for Rick as a double agent against the Saviors.
- Tom Payne as Paul “Jesus” Rovia, a scout for the Hilltop, that fights for the moral balance of the group.
- Xander Berkeley as Gregory, the selfish and hypocritical leader of the Hilltop whose influence diminished with Maggie’s prominence.
- Khary Payton as Ezekiel, the charismatic leader of the Kingdom who allies with Rick against the Saviors.
- Steven Ogg as Simon, a former mortgage broker and Negan’s second-in-command, he does not hide his intentions to overthrow Negan.
- Katelyn Nacon as Enid, a former member of Alexandria who moved to Hilltop to be with Maggie, and has formed a relationship with Carl.
- Pollyanna McIntosh as Jadis / Anne, the deceptive leader of the Scavengers who betrayed Rick’s group, and maintains a neutral stance in the war.
- Jason Douglas as Tobin, the foreman of Alexandria’s construction crew and member of Rick’s militia.
- Jordan Woods-Robinson as Eric Raleigh, Aaron’s boyfriend and his former recruiting partner, who is now a member of Rick’s militia.
- Kenric Green as Scott, a supply runner in Alexandria and member of Rick’s militia.
- Dahlia Legault as Francine, a member of Alexandria’s construction crew and member of Rick’s militia.
- Mandi Christine Kerr as Barbara, resident of Alexandria.
- Ted Huckabee as Bruce, resident and member of Alexandria’s construction and member of Rick’s militia.
- James Chen as Kal, a guard of the Hilltop and soldier of the Hilltop’s militia.
- Peter Zimmerman as Eduardo, a guard of the Hilltop and soldier of the Hilltop’s militia.
- Karen Ceesay as Bertie, a resident of the Hilltop and soldier of the Hilltop’s militia.
- Jeremy Palko as Andy, a resident of the Hilltop and soldier of the Hilltop’s militia.
- Brett Gentile as Freddie, a resident of the Hilltop and soldier of the Hilltop’s militia.
- R. Keith Harris as Dr. Harlan Carson, the doctor at the Hilltop, who was captured by Simon in the previous season.
- Jayson Warner Smith as Gavin, one of Negan’s top lieutenants, who leads the weapons base.
- Traci Dinwiddie as Regina, one of Negan’s top lieutenants.
- Elizabeth Ludlow as Arat, one of Negan’s top lieutenants.
- Mike Seal as Gary, one of Negan’s top lieutenants and accomplice of Simon in his plans to overthrow Negan.
- Lindsley Register as Laura, one of Negan’s top lieutenants.
- Juan Pareja as Morales, a survivor from Rick’s original Atlanta camp who joined the Saviors.
- Joshua Mikel as Jared, Benjamin’s killer, and a hostile member of the Saviors who antagonizes Morgan.
- Callan McAuliffe as Alden, a member of the Saviors who surrenders to Jesus at the satellite station outpost.
- Lindsey Garrett as Mara, a Savior who guards one of many outposts.
- Lee Norris as Todd, a timid member of the Saviors who works at the same outpost as Mara.
- Whitmer Thomas as Gunther, a member of the Saviors who tortures Ezekiel.
- Charles Halford as Yago, a Savior who manages Gavin’s weapons base.
- Ciera L. Payton as Zia, a Savior whom Rosita and Michonne encounter at a supply warehouse.
- Adam Cronan as Leo, a Savior whom Rosita and Michonne encounter at a supply warehouse.
- Chloe Aktas as Tanya, one of Negan’s wives.
- Elyse Dufour as Frankie, one of Negan’s wives.
- Jon Eyez as Potter, a worker for the Saviors.
- Adam Fristoe as Dean, a Savior who tried to kill Jesus.
- Matt Mangum as D.J., one of Negan’s top lieutenants and guardian of the Sanctuary.
- Aaron Farb as Norris, a member of the Saviors.
- Cooper Andrews as Jerry, Ezekiel’s loyal and good-natured bodyguard.
- Kerry Cahill as Dianne, one of Ezekiel’s top soldiers and a skilled archer.
- Daniel Newman as Daniel, one of Ezekiel’s top soldiers.
- Carlos Navarro as Alvaro, one of Ezekiel’s top soldiers.
- Macsen Lintz as Henry, a resident of the Kingdom and younger brother of the deceased Benjamin, who wants revenge on the Saviors for the death of his brother.
- Jason Burkey as Kevin, a resident of the Kingdom.
- Nadine Marissa as Nabila, a resident and gardener of the Kingdom.
- Deborah May as Natania, the vigilant leader of Oceanside.
- Sydney Park as Cyndie, Natania’s granddaughter.
- Briana Venskus as Beatrice, one of Oceanside’s top soldiers.
- Nicole Barré as Kathy, one of Oceanside’s top soldiers.
- Mimi Kirkland as Rachel, an aggressive young member of Oceanside.
- Sabrina Gennarino as Tamiel, a leading member of the Scavengers.
- Thomas Francis Murphy as Brion, a leading member of the Scavengers.