The 34-year-old actor was found in the 300 block of S. Fuller Avenue at about 12:45 a.m. Wednesday, officials said.
Bufanda jumped from the 13th floor of a building and, according to an autopsy, he suffered traumatic injuries.
His death has been ruled a suicide.
Bufanda played Felix Toombs in seasons 1 and 2 of "Veronica Mars," and appeared on other shows such as "Days of our Lives," "Malcolm in the Middle" and "CSI: Miami."