|Family||Addison Carver - Girlfriend|
|First Appearance||"Puppies and Kittens"|
|Last Appearance||"Day One" (Flashback only)|
|Death Episode||"White Light"|
|Cause of Death||Devoured by Zombies. Out of mercy by Addison Carver|
|Series lifespan||"Puppies and Kittens" to "White Light"|
|Mack being devoured by Zombies|
Mack was a charming all-American jock who had an eye for the ladies. A good shot and with a temper, Mack protected Addy no matter what.
Nothing is known about Mack prior to the apocalypse, other than the fact that he was an ice hockey player for the Tri-City Americans in the Western Hockey League (Canada).
Mack is first seen with Addy and Doc buying weapons from traders Skeezy and Sketchy. He helps fight off a small wave of zombies attacking them and the traders. He is later present with Doc when the camp of the Upstate New York survivor group is found destroyed. Mack joins Garnett in finding the military convoy, finding it destroyed near a building. As he searches the surrounding area he encounters a pack of zombies surrounding a cage. After clearing away the zombies together with Doc and Addy, he breaks the lock and enters the cage to interact with the survivor inside. The survivor, Cassandra, pins him to the cage wall with a knife. She calms down after holding him there for several seconds. He joins the Westward-Bound Survivor Group to California.
Mack and the Westward-Bound Survivor Group seek refuge and help from Joe Williams in a no-weapon zone area. However, The Resurrection Cult infiltrated the place by sending humans to promptly commit suicide and cause a zombie outbreak in the facility. Garnett sacrifices himself to save Murphy by taking a bullet from Jacob and later turns into a zombie. A depressed Roberta Warren tearfully gives Garnett mercy by using 10K's sniper rifle.
Mack Thompson and Addison Carver gets separated from the group as they ran into a horde of zombies and the others moving to the Fu-Bar. They survive and go to the opposite direction of where the team goes to.
Mack and Addy were able to outrun the Zunami and stayed safe.
Mack and Addy are the only ones who appear in the episode. Both Mack and Addy dreams about the FrankenZombie who kills them repeatedly in their dreams. It was revealed that Addy’s vision was a memory to when she killed her mother and brother during the first day of the apocalypse.
He and Addy are travelling to an area.
Mack leaves the group in Utah outside the Sisters of Mercy camp, where Addy is. He refuses to leave Addy behind and is then promptly shot at by Helen forcing him to get on the truck containing the Westward-bound survivor group. However unable to leave Addy he jumps off the truck as it leaves and several gunshots are heard.
He is still at Utah watching Addy from afar.
He is seen at the end of the episode looking up at the nukes in the sky.
Mack eventually gets together with Addy as she revealed that Sam, who eventually knew what Helen was really doing, came back and burned the camp to the ground, killing all of the sisters except her and Serena. They were able to reunite with the group and go to a bar and encounter Javier Vasquez and chasing Murphy, ,ending the episode.
While looking for Murphy, Mack and Addy get separated. His attempt to escape was thwarted by a locked door and despite Addy's best efforts, she was far too late on saving Mack as he was caught by zombies and devoured just as she opened the door. His last moments as a human have him smiling despite being in pain. Addy tearfully shoots him in the head for a mercy kill.
- Citizen Z
- Charles Garnett (Deceased)
- Roberta Warren
- Addison "Addy" Carver
- Steven "Doc" Beck
- Cassandra (Deceased)
- Unnamed Man
- Mark Hammond (along with Westward-Bound Survivor Group)
- Numerous Counts of Zombies
- Jordan Beale (Out of Mercy)
"Damn, you're sexy when you get all philosophical." Mack to Addy in "Fracking Zombies"
"Goddamn humans?" Mack to Citizen Z in "Philly Feast"
"Full commando baby." Mack to Addy in "Home Sweet Zombie"
"Addy! Please I don’t want you to see me turn !" Mack to Addy in “White Light”