* HeyItsThatGuy:
** Sheriff Killian Darkwater is [[Series/StargateSG1 Jack O'Neill]] and {{MacGyver}}. The character even looks like Mac.
** [[Creator/TonyJay The super mutant Lieutenant]] is [[WesternAnimation/TaleSpin Shere Khan]] and [[ReBoot Megabyte]].
** We have [[TransformersGeneration1 the original and Transformers Prime Megatron]] as John Maxson.
** [[KathSoucie Laura]] is [[BaldursGate Aerie]] and [[WesternAnimation/TinyToonAdventures Fifi La Fume]].
** [[Creator/DavidWarner Morpheus]] is [[BaldursGate Jon Irenicus]].
** The Master is [[Creator/JimCummings Darkwing Duck]].
** [[CharlieAdler Harold]] is [[TinyToonAdventures Buster Bunny]] and [[CowAndChicken Cow/Chicken/The Red Guy]]
** Aradesh is [[Series/{{Monk}} Monk.]]
** [[ClancyBrown Rhombus]] is [[SupermanTheAnimatedSeries Lex Luthor]] and [[SpongebobSquarepants Mr. Krabs]]
** Harry is [[BradGarrett Robert Barone]].
* WhatCouldHaveBeen: Originally the game was going to use the GURPS system for character creation, and was entitled ''Vault 13: A GURPS Post-Nuclear Adventure''. Disagreements with Steve Jackson led to the termination of Black Isle's GURPS license, so the developers cooked up the SPECIAL system for the game and changed the title to ''Fallout''.
** The original draft of the conclusion of the Junktown questline was rather [[GreyAndGreyMorality morally grey]], with Gizmo turning the town into a grade-A resort in which society flourished, although for a mainly selfish reason, and on the other hand having Killian become a KnightTemplar who ends up ridding the town of crime once and for all, which also causes a slow depopulation of the place, as people would start to avoid it in fear of the overzealous sheriff. This was scrapped for the final release after the marketing department decided that the game had to "reward good and punish bad".