An experienced and talented FAI agent, Dennis came to Japan with the FAI's Purple Haze unit and Emma to investigate the incident. Calm and rational, he was a USN Army officer before joining the FAI and is capable of almost everything, including aircraft and Wanzer piloting. Although he doesn't like showing it, he is very caring for his friends and people around him. Apparently, Dennis has a friend or contact in almost every country the party visits. He is a playable character in Emma's story, and an enemy character in several missions in Alisa's story.