He was voiced by Shōzō Iizuka.
Bosgun was one of the commanders in the Crisis Empire force sent to invade Earth and the one in charge of the Man-Beast/Mutant unit.
He at one point schemed to usurp General Jark but his treachery was uncovered by General Jark himself and his plot was foiled.
When Gran Zarius arrived on Earth, Bosgun worked alongside him to defeat Black RX. Bosgun would meet his end when Black RX stabbed him with the Revolvcane.