Jun Kazu

Jun Kazu is a researcher of Foundation X wearing a lab coat at almost all times and is one of the major antagonists of Kamen Rider Double.

Personality
Kazu most of the time appears cold and emotionless and has a strange habit of whenever he sees others dispaly emotion he drops whatever he is holding. He is not completely emotionless as he saved Saeko Sonozaki from near death out of love and is willing to tell her things his organization has, such as the T2 Gaia Memories. He has also shown an evil smile when resuming the Gaia Impact.

Part in Story
Kazu first appears to Ryubee Sonozaki where Ryubee tells him that with his daughter, Wakana Sonozaki the groups funding they gave to the Museum will be well worth it. After Saeko is left for the dead by the Smilodon Dopant, Kazu saves her out of love and offers to help her but she turns him down. He then witnesses Saeko use the powers of the Level 3 R Nasca Dopant and learns about her sister's role in the way she was raised. It is only after Wakana evolves into ClayDoll Xtreme that Saeko accepts Kazu's advice. In his first appearances Kazu holds at all times a briefcase containing the T2 Gaia Memories until he gives them to Tabata to take to their headquarters.

After Ryubee's death, he rescued Wakana from the burning Sonozaki Estate, and with Saeko, he plans to resume the Gaia Impact. He then reveals himself to the riders as the Utopia Dopant in an attempt to force Philip to complete the Gaia Impact.

Utopia Dopant
When the Kamen Riders came to save Wakana, Kazu reveals his ownership of the gold colored Utopia Gaia Memory as well as a Gaia Driver he took from the Museum in order to become the seemingly omnipotent and powerful Utopia Dopant possessing more powers than the extremely enhanced Weather Dopant. So powerful, that just transforming into his Dopant form causes unheld-in-place objects to levitate and get pushed away when he transforms. The most seen of his powers is telekinesis which he uses for bringing people and things to him, repelling attacks from enemies, levitating objects, and cause great pain onto others. The Utopia Dopant is armed with a cane as his weapon. He also demonstrated releasing fire from his hands, strength powerful enough to tear apart a street causing steam to erupt then disappear, summoning a tornado with a small thunderstorm, move at high speeds, stealing some of people's life force and adding it to his power, and causing people to combust. Kazu stated that this is because the Utopia Memory revolves around the concept of granting wishes.