Question: Yūki Tokiwa (常盤 祐貴 , Tokiwa Yūki , born on August 16, 1991 in Hyōgo-ken) is a Japanese voice actor, he  is the official Japanese voice dub-over artist for actor: "Rupert Grint" as which fictional character in J. K. Rowling's "Harry Potter" series?
Sentence (from "Ron Weasley"): His first appearance was in the first book of the series, "Harry Potter and the Philosopher's Stone" as the best friend of Harry Potter and Hermione Granger.
Relevant evidence: No