Hitoshi Akamatsu was the head director of the creation team behind the original Castlevania and it's also known that he and his team were in charge of the creation of Simon's Quest, Dracula's Curse, and Snake's Revenge (a non-canonical sequel to Metal Gear released for the Nintendo Entertainment System).
During the 8-bit era, all Japanese video game developers had to go by pseudonyms, probably in an attempt of game companies to diminish head-hunting by rival ones. One of the downsides of having those fake credits was that nobody actually knows for certain who created the Castlevania series. The best guess is a Mr. "Hitoshi Akamatsu", but unfortunately he seems to have disappeared from the gaming industry during the early '90s. There is, however, a small record of the games he collaborated in. Many attempts have been made to track down Mr. Akamatsu, but to date there has been no success.
In an interview with game creator and director, Masahiro Ueno (main director of Super Castlevania IV, and also known as "Jun Furano"), he confirmed that the same team was responsible for the development of the three Famicom Castlevania games: Castlevania, Simon's Quest and Dracula's Curse. In an unpublished interview with the creator of Haunted Castle, he said that the head of the original Castlevania was Hitoshi Akamatsu, the same as the sequels.
- Castlevania II: Simon's Quest (1987) (Designer and Director, credited as "Invincibility")
- Castlevania III: Dracula's Curse (1989) (Director)
- Castlevania III: Dracula's Curse (1989) (Programmer)
- Snake's Revenge (1990) (Programmer)
- Castlevania (1986) (Screenplay)
- H. Akamatsu developer ID at MobyGames.