
Quick answer — Youhei Tadano voices Benedict Goodfellow in SPY x FAMILY, Kudou in Great Pretender, Shougo Nakanoshima in Great Pretender and 18 more characters.
Youhei Tadano voices Benedict Goodfellow (SPY x FAMILY), Kudou (Great Pretender), Shougo Nakanoshima (Great Pretender), Eric Orgiani (Lupin the 3rd Part IV), Miyagi (Megalobox), Rin Chin Chin (Lupin the Third: The Woman Called Fujiko Mine), Ryoutarou Sorami (Star☆Twinkle Precure), Baduck (Dragon Quest: The Adventure of Dai) and 13 more.
Benedict Goodfellow is voiced in Japanese by Youhei Tadano.