Hundley Yeoksan serves within the Earth Federation's Criminal Police Organization. He emerges following the hijacking of the passenger shuttle Haunzen in U.C. 0105. At Davao International Airport, he intercepts Hathaway Noa after the incident. Hundley identifies Hathaway as Bright Noa's son and references his past actions during Char's Rebellion twelve years earlier, specifically noting that Hathaway stole and piloted a mobile suit – an act the Earth Federation Forces overlooked due to their victory in the conflict.

He coordinates with Bureau of Investigation agents, including Gass H. Huguest, to arrange interviews regarding the hijacking. Hundley instructs Hathaway to remain in Davao overnight for questioning, despite Hathaway's stated requirement to travel to Manado for botanical observer training under Professor Amada Mansun. Hundley demonstrates familiarity with Professor Mansun's environmental philosophy, quoting the principle of "no revival without purification" and drawing parallels between this ideology and the objectives of the Criminal Police Organization. His dialogue suggests awareness of broader sociopolitical issues, including the Man Hunter policy.

His professional interactions focus on procedural efficiency, such as intervening in jurisdictional disputes between investigation units and military personnel. He facilitates Hathaway's accommodation arrangements through subordinates. Analysis of Hundley's operational methods highlights a pragmatic approach, prioritizing organizational goals and maintaining loyalty to the Earth Federation structure. One documented statement attributed to him is: "Only those who are prepared to die themselves have the right to kill."