Looks like the Gobusters’ main cast has finally been revealed. Below are the names of the characters and actors that play them. Credit goes to alternate-zer0 on HJU for posting up the scan for all of us to see.
Red Buster – Hiromu Sakurada (Katsuhiro Suzuki)
Blue Buster – Ryuji Iwasaki (Ryoma Baba)
Yellow Buster – Youko Usami (Arisa Komiya)