An American professor and senior researcher at Victor Chondria University's Brain Research Institute. He serves as a mentor to Kurisu Makise and Maho Hiyajo. He is well respected in his field and is often described as childlike and friendly by Maho Hiyajo.

Spoiler

He works for Stratfor and destroyed the time machine several times directly and indirectly

Spoiler

He brainwashed Kagari in the future and sent her back in time to contact his past self about the time machine