I usually gravitate towards the scientist types in fiction but that's not why I like him.

He had this weird teenage mid-life crisis look and attitude that made him look anything but a researcher/scientist. He had an odd charisma but his fervent fascination helped drive the fact he's a scientist and the best at what he does.

I love how overt he was towards the end but still is douchey towards kouta (as he had to gulp down sour lemonade) and revels in it. He's 2nd to Takatora in the Energy Riders tier for me..

His armored from was based on a king, he could turn invisible, recorded everything everywhere FOR SCIENCE!, had a henshin pose evoking the Zyurangers... I could go on. Ryoma is awesome.

Another picture for Ryouma :lol
http://i3.kym-cdn.com/photos/images/...96/853/24d.png

You know, if this guy was wearing purple I would think he was this guy:

http://img2.wikia.nocookie.net/__cb2...-The-Third.png

Ryoma was one of those characters you loved to hate. What a despicable asshole... but he was a lovable one. Duke was also an awesome Rider though I think they built it up too much without enough payoff.

http://i1090.photobucket.com/albums/...7-DSCF3964.jpg

http://i1090.photobucket.com/albums/...nalyzing-1.jpg

I love Ryoma/Duke, great villain, he is pure evil, betraying Takatora, rip Mai's heart to get the forbidden fruit etc what a sinful guy :thumb:

One of the best antagonists I have seen so far. Nice henshin sequence, awesome finishers. His personality too, is cool. Ryoma's a man of Science, and by golly is he one of the better mad scientists I know. Plus, he developed the Drivers in the show, and has a kill switch for some of them. His Armored Rider form has a beard as well.

And oh, a Professor in shorts? Better than Professor Birch, imho.

That's our Ryoma Sengoku.