I don't have a cast for all the characters, but here's what I've got so far.
Doctor in the hospital - Patrick Seitz (Germany in Hetalia, Ragna in Blazblue)
Akio Mutou - Jamieson Price (Iron Tager in Blazblue, Duke in Tales of Vesperia)
Nurse - Troy Baker (Yuri Lowell in Tales of Vesperia, Vincent Brooks in Catherine)
Jigoro - Liam O'Brien (Asura in Asura's Wrath, Gaara in Naruto)
Hanako - Stephanie Sheh (Hinata in Naruto)
Lilly - Jennifer Hale (Naomi Hunter in Metal Gear Solid, Ophelia in Brutal Legend)
Kenji - James Rolfe (The Angry Video Game Nerd)
Shizune - Michelle Ruff (C. Viper in Street Fighter IV, Rita in Tales of Vesperia) [ Her speech would be conveyed with that 'hazy' effect as if a character's thoughts were being vocalized ]
Hisao - Me (Shut up, I'm entitled to be a bit of a narcissist
