In the first part, there's a scene where Sugiyama stammered on a line and all the other seiyuu turned to look at him (while he was talking as the hospital director)
Sugita-san, morita-san, along with Yasumoto-san... Meh 3 favourite seiyuus in one frame. Also, as an hetalia & Gintama fan, I can only hear Ishida & Chad as England & Germany and Nova as Gintoki (lol help*)