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Gametitle-FO3Gametitle-FO4 CC
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You shoulda seen my pop, he personally saved old Stanley! But I guess you wouldn't know what it's like to have a hero for a dad, would you?

Wally Mack is a resident of Vault 101 in 2277, and is a member of a greaser gang called the Tunnel Snakes.


Born in 2258, Wally is the brains of the Tunnel Snakes. He doesn't talk as much as the others, but they listen to what he has to say when he does say something.[1] He is one of the Lone Wanderer's peers in Vault 101 and is encountered throughout the Lone Wanderer's youth inside Vault 101.

Creation Club logoThe following is based on Creation Club content and has not been confirmed by canon sources.

By 2287, Mack is the leader of the Tunnel Snakes in the Commonwealth. He believed that the gang could gain superpowers from the radioactive barrels in Fens Way station, their base of operations. Over time, Mack and the other Tunnel Snakes succumbed to radiation sickness, transforming into feral ghouls.

Creation Club logoEnd of information based on Creation Club content.


During their formative years, the Tunnel Snakes harassed other students in Vault 101, even being bold enough to taunt the Overseer's daughter, Amata Almodovar. Butch DeLoria presumes to be the leader of the Tunnel Snakes, but Wally Mack might disagree if challenged.

Wally is the son of Allen and Gloria Mack. Wally's siblings are Stevie and Susie. Butch DeLoria and Paul Hannon Jr. are Wally's friends and fellow gang members.

Interactions with the player characterEdit

Interactions overviewEdit

General Services Quests
Essential: yesIcon check
Enslavable: noIcon cross
Companion: noIcon cross
Bounty: noIcon cross
Merchant: noIcon cross
Repairman: noIcon cross
Doctor: noIcon cross
Rents bed/room: noIcon cross
Starts quests: noIcon cross
Involved in quests: yesIcon check


  • Growing Up Fast: Wally attends the Lone Wanderer's 10th birthday party and takes part in discussions leading to the formation of the Tunnel Snakes. Wally makes fun of the Lone Wanderer's Pip-Boy, since he never wears his. Also, he makes fun of the Lone Wanderer's birthday party, saying that the party is for little kids and that on his birthday, everyone played Hunt the Mutant in the Atrium. He then notes that Lone Wanderer wasn't invited to his party.
  • Future Imperfect: On August 3, 2274, before the G.O.A.T., Wally and his friends are harassing Amata near the classroom.
  • Trouble on the Homefront: During the rebellion, Wally can be found living in the Lone Wanderer's old room.
  • fo4ccGametitle-FO4 CC Tunnel Snakes Rule!: Wally Mack (as a glowing one) must be eliminated in Fens Way station.


Apparel Weapon Other items On death
Pip-Boy glove
Pip-Boy 3000
Tunnel Snake outfit*
Vault 101 jumpsuit**
Baseball bat** - -

* Has it only equipped during Future Imperfect
** Has it only equipped during Trouble on the Homefront


  • Wally Mack can also be found in Vault 106 as a hallucination in his Tunnel Snake outfit (along with the rest of the Tunnel Snakes) during the fight with the Survivor in the lowest level of the vault.
  • During Future Imperfect, Wally Mack appears to be somewhat resentful of being considered Butch Deloria's "follower" if he is called that by the Lone Wanderer.
  • Upon meeting him during Trouble on the Homefront, he strangely has switched to a different voice.

Notable quotesEdit

  • "This party's pretty good, I guess. For a little kid. Balloons. Party hats... Not as cool as my party though. Remember how my dad got Andy to do magic tricks? And we all played Hunt the Mutant in the Atrium? Oh, right... you weren't invited to my party. Too bad, man. It was really fun."
  • "What? You mouthing off, spaz? Everyone knows the Tunnel Snakes! We rule this Vault, and we don't take shit from nobody. Not you, not her, and not her daddy, the Overseer."
  • "You shoulda seen my pop, he personally saved old Stanley! But I guess you wouldn't know what it's like to have a hero for a dad, would you?"


Wally Mack appears in Fallout 3, as well as Fallout 4 Creation Club content.



  1. Fallout 3 Official Game Guide
Mack family