MP Gimbel was a member of the Military Police in the United States Army during World War II. He worked at the Colinas de Oro War Relocation Center, a Japanese internment camp, and seemed to be in charge of the other MPs.
His service at the camp ended when it was shut down by order of the United States Supreme Court in 1945. ("Come and Get Me")
On The Terror: Infamy, the second season of AMC's The Terror, MP Gimbel was portrayed by Nathan Houle.