Allen Mack

 is a resident of Vault 101 in 2277.

Background
Wally Mack's father is not a man to be trifled with. He is overly protective of his family ever since the death of his wife (mother of Wally Mack, Susie Mack, and Officer Mack). He's taught basic survival skills to his children but isn't overly fond of showing emotion. Should Overseer Almodovar ever become incapacitated, Allen has vowed to take over the running of Vault 101.

Relationships
Allen Mack is the husband of Gloria Mack, and the father of Wally, Steve and Susie Mack. His father-in law is Stanley Armstrong, and he's got two sister-in-laws, Beatrice Armstrong and Mary Kendall.

Effects of player actions
When the Lone Wanderer is escaping the Vault, Allen slams on the window of his vault room, calling for the guards and saying that everything is the Lone Wanderer and James's fault.

If the player killed the Overseer during their initial escape, Allen will be elected the new Overseer who is even more oppressive than the previous one and cannot be reasoned with.

Appearances
Allen Mack only appears in Fallout 3.