Yuuichi Nakamura as Beet J. Stag. Which means, for a thing shown for kids, the Buddyroids (except maybe Usada) had an experience of voicing utter bastards, such as Alial-Saachez, Kratos and TerumiYuuki. Good luck, Go-Busters... Also, one of them was an Action Commander from Gokaiger. On the bright side, they have also done western Superhero dubs, being respectively Iron Man, Batman and Captain America.
The Soujikiroid is Hiroyuki Yoshino, best known as Allelujah Haptism — hands up everyone who was expecting this strangely well-mannered creature to flip his shit just once.