|“||Berlin, Eisenwald Prison. But you’ll never make it there. We have checkpoints everywhere looking for you. Looking for you and the nurse. And soon they will find this place... and then you will be on your knees!||„|
|~ Keller's last words before his death.|
Friedrich Keller is a minor antagonist in Wolfenstein: The New Order. He was responsible on murdering anyone in the asylum including Anya's parents. B.J smuggled him on the trunk of the car. after the fight. and been interrogated by finding the remaining resistance fighters then B.J Beheads him with a chainsaw.
He was voiced by Heiko Obermoller, who also voiced Gruber in Wolfenstein II: The New Colossus.
Friedrich Keller's childhood was defined by domestic abuse and poverty. When Germany invaded France, Keller went to the local SS office and informed the Nazis of his father's ties to the resistance. Keller views Strasse as his surrogate father.
U.S. special forces operative Captain William "B.J." Blazkowicz takes part in a raid against Deathshead's Compound and weapons laboratory run by his nemesis, General Wilhelm "Deathshead" Strasse. The three are captured and brought to a human experimentation laboratory where they escape the laboratory, but Blazkowicz suffers a critical head injury during the escape, rendering him in a coma.
He is brought to a psychiatric asylum where he remains for fourteen years. He is cared by the asylum's head nurse Anya Oliwa and her parents, who run the facility under the Nazi regime. Blazkowicz watches as Anya's parents are regularly forced to hand patients over to Nazi authorities, who deem them Untermenschen for their mental disabilities
Until finally in 1960, the Nazis decided to purge all the patients. Keller was responsible for murdering every patient. He is very prejudiced before that taking patients from the wards to bring them to Strasse for human experimentation. Keller hid in the trunk of his car when B.J. Blazkowicz discovered him and had him interrogated. After the interrogation, Keller taunted B.J., who then shortly beheads him with a chainsaw. Keller's headless body was later found at the bottom of a river close to Gdynia, Poland.
- Keller's surname translates to "basement or cellar" in modern German, foreshadowing his death.