Raye Penber

Raye Penber is an American Investigator from the FBI, who was sent to Japan along with 11 other FBI agents to track down Kira. Raye was assigned to investigate the Yagami family for any suspicious behavior; but eventually stops suspecting Light.

Raye is engaged to a former FBI agent, Naomi Misora, who later attempts to investigate the 'Kira' case.

(Source: Wikipedia)