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All you know of robots are those buckets of bolts -- Those Mr. Handshakers and whatnot. Well... that's not ALL a robot can be.

Dr. Zimmer is an Institute scientist who is temporarily staying at Rivet City in 2277.


Dr. Zimmer was born in 2219. At the age of 58, he is a very serious, very straight-forward scientist who has traveled to Rivet City from the Commonwealth (Massachusetts) and is in town on business for "the Institute." Zimmer is looking for an escaped robot, an experiment that, in Zimmer's words, is "unstable, and a danger to himself and others." He is, without exception, always in the company of his bodyguard, Armitage.[1]

After picking up the trail once he got to the Capital Wasteland, Zimmer eventually made his way to Rivet City in the hopes that fellow scientist Dr. Madison Li could assist him in his search for his missing android. On arrival to the Rivet City science lab, he was refused the right to speak with Li by Anna Holt, Li's assistant. Despite being refused assistance, he remains within the lab, refusing to leave and demanding to speak directly with Li. He will refuse to leave until Li "...stops playing with her chemistry set and starts talking real science." It should be noted that Dr. Zimmer shows utter contempt and disgust for Rivet City and its residents.

He stays in Rivet City even after Li has left.

Interactions with the player characterEdit

Interactions overviewEdit

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


The Replicated Man: Zimmer wants you to hunt down a rogue android.

Other interactionsEdit

If Zimmer is convinced the android is dead, he will leave Rivet City and disappear from the game.


Notable quotesEdit

  • "All you know of robots are those buckets of bolts -- Those Mr. Handshakers and whatnot. Well... that's not ALL a robot can be."
  • "That's Doctor Zimmer to you! Miss... miss whatever-your-name-is. I'd have thought you barbarians would be more interested in advanced technology."
  • "Harkness, you say? Yes... Yes, that makes sense. He used to work for a special branch of the Commonwealth Police, after all... And he's right here in Rivet City! Excellent! I must wait... find an opportune moment to confront him... Thank you for your discreet assistance, and continued discretion regarding this matter. And now for your payment. This combat module will directly affect your central nervous system. I think you will find it quite beneficial."


Zimmer appears in Fallout 3 , and is mentioned in Fallout 4

In Fallout 4 he is mentioned to be the director of the "Synth Retention" department of The Institute in The Commonwealth. He is currently on assignment to an unknown location. In his place is acting Director Justin Ayo. If you choose to frame him for helping Synths flee, Alena Secord will take his place as acting director.


  1. Fallout 3 Official Game Guide

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