“Mr. Matsuda, please don't celebrate the deaths of so many people.”
Yamamoto has dark, cheek-length hair and wears glasses.
Yamamato joins the Task Force within a year after Light dies. He and Matsuda are friends of a sort. According to Matsuda, they've gone drinking together, apparently more often than Yamamoto would like. Yamamoto also makes an appearance in the post-series one-shot special.