We don't have a biography for Hiroki Koyama.
Battle for SaipanHD
Battle for Saipan
IMDb 5.22022 94 min
When a US Army hospital on the remote island of Saipan is overrun by Japanese forces, a lone medic puts it all on the line to lead a band of wounded warriors to safety in this edge-of-your- seat WWII epic.
Casper Van Dien, Louis Mandylor, Jeff Fahey, Eoin O'Brien, Jennifer Wenger, Devanny Pinn, Randall J. Bacon, Luana Cavalcante, Stien Davis, Hiroki Koyama, John Garrett Mahlmeister, Natalia Nikolaeva, Josh Riley, Niko Rusakov, Maya Van Dien, Nobu T Watanabe, Alexander Winters, Flavia Zaguini