Ryō Kuroyanagi is a 22-year-old head at the main Pantasia branch, and a Harvard graduate with a degree in food sciences.
He has short black hair and small brown eyes. He wears the Pantasia Head uniform with a blue scarf around the neck.
He is very serious whenever he is making or judging bread. He gets very angry when Kazuma keeps calling him an old man, reminding him that he is merely 22. His strait-laced no-nonsense attitude belies his very silly quirk of making strange pun-based reactions to the delicious bread he's eating (during the match in Uppurui he married an extremely ugly woman just for the sake of a pun, getting a divorce five minutes later.).
While studying in America he had a girlfriend named Cathy. They separated when he graduated and returned to Japan.
His passion and talent is food tasting, at which he excels.
He has incredible physical senses, as he could deduce the cooking and fermentation times as well as the proportions of ingredients of a loaf of bread just by smelling it: he is even used as a sniffer to track down a runaway Suwabara during the match in Ōmagari.
He used to be the student of Ken, but Ken drove Ryou away with his behaviour. He is given the opportunity by Yuuichi Kirisaki to fully utilize his skills as a judge for the Yakitate!! 25 competition (Episode 9 in the anime).
Both Ken and Tsukino called him a bread zombie. He is also one of the many people who make fun of Kyousuke.
"Death"Umasaburou, Ryou (along with fellow judge Dave) "died" from eating Azuma Kazuma's bread, Japan #44, because it tasted to die for.
After he dies, he meets Satsuki, who bears a resemblance to Cathy, and they fall in love. He regains consciousness after a certain period of time, alongside Dave.