Doctor Klein

Doctor Klein is a pre-War scientist operating the Big Empty in 2281.

Background
Doctor Klein is a Pre-War doctor that became a think tank to continue his work at Big MT. He claims to be the first in his field, or 'first chair', indicating that he might have been or still is the facility's chairman or administrator. He seems to be overconfident in his intelligence, as evidenced by returning all of the advanced technology and the Courier having to walk him through the plan for the next quest, as he couldn't figure out what to do. Strangely, although being human at one point, he does not seem to have much knowledge of human anatomy, as he refers to the Courier's fingers and toes as "penises". He is shown not to like Mobius much. He seems to hold his colleagues in low regard, often ignoring their advices. At the end of Old World Blues (Quest), it is revealed that he and the think-tanks stole the Courier's brain in order to go into the Mojave and wreak havoc.

Quests

 * Sonic Emitter Upgrade: Klein wants you to go to the X-8 research center and take the Basic Institutional Test, which allows you to take the Advanced Institutional Test, which allows you to upgrade the sonic emitter, which takes down the force fields.
 * X-2: Strange Transmissions!: Klein would appreciate it if you would disable the X-2 transmitter
 * X-8: High School Horror!: Klein asks you to retrieve the three student records from the X-8 Institutional Facility.
 * X-13: Attack of the Infiltrator!: Klein wants you to head to the X-13 research facility and find parts for the X-13 cardiac regulator sneak suit.
 * Old World Blues: After completing your tasks, return to Dr. Klein for further information.

Notable quotes

 * "What did he say? 'Spit lead?' What, like pencils?"
 * "What is it, the Lobotomite is asking questions and I'm trying to ignore it."

Appearances
Doctor Klein appears in Old World Blues.

Behind the scenes

 * His name is a reference to the Klein bottle, a 4D object with infinite volume.
 * Klein seems to have been a drinker when he was human, considering his house in Higgs Village possesses a fully-stocked bar and plenty of alcohol.
 * his name may be a reference to half life 2's dr. kleiner.