デニス・トーラー Denisu Tōrā
Dennis Toller (デニス・トーラー, Denisu Tōrā) is a character who appears in supplemental materials concerning Suikoden. He was an alchemist and author whose work laid the foundation for modern alchemy.
Dennis Toller is the author of the alchemical tome "Dialogues of Wind and Earth". Contemporary alchemy began to take form from the basic concepts explained carefully in his work. Kamandol is an alchemist following in the traditions established by Dennis Toller.
His name is more commonly localized as Dennis Taurer, a last name that would be difficult to construct out of the katakana given.