Alias: Doc, Professor, The smartest man of the worlds, Genius Scientist, the Scientist who made it possible, the man who never aged.
Age: 24 (Biological age). Unknown age (Immortal)
Rider Type: Hero, Rider (Retired)
Looks:
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Gender: Male
Story Series: Kamen rider Decade x Animeverse, Kamen rider Zi-O x Animeverse, Kamen rider Zero-One x Animeverse, any series
Species: Human
Affilation: Special United Force/S.U.F, S.U.F Science Center, Dimensional Delta Force (formerly)
Occupation: Head of the Science Center, Scientist
Nationality: British
Family: Parents: (Deceased) Twin brother: Napoleon (Alive) Foster children: Aisuri, Ashisu, Suishi, Snow and Tani (Alive)
Love Interest: Houshou
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Likes: His friends, Doggie Kruger (His best friend), Bassui (Best friend), Swan (Best friend), creating of gadgets and weapons, helping others, his inventions, getting the couple together best matches, doing of science, children, spending time with his foster children and Houshou, his apprentice
Dislikes: Rogue Kaijins, Legions of Villains, All for One, Neo Shocker, Shocker Commander, someone who brokes the battle gadgets or weapons, someone who hurt his friends, someone interrupted his works, getting heart attacked or scared
Personality: Friendly, kindly, careful, smart, intelligence, sometime to be foolish and carefree, genius, sometimes to be gets panicked or scared, determine, sometimes to be cold, serious, respectful, leadership
Personal Info: Classified
Rider forms:
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Kamen rider Build (Primary forms)
Quotes:
'Hello, my name is Hugh Stein, I am the head of S.U.F's Science Branch. Nice to meet you kid.'
'The laws of victory have been yet!'
'This is the best/worst!'
'Now.... shall we begin the experiment?'
'Yes..... I was Kamen rider Build the first one after the end of Riders' Era.'
'Bloody hell! I almost got the heart attacks!'
'I am British alright!
'I'm amazing! I'm the best! I'm the bloody genius!'