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 for 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.